1
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Esirkepov TZ, Bulanov SV. Luminal mirror. Phys Rev E 2024; 109:L023202. [PMID: 38491701 DOI: 10.1103/physreve.109.l023202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/26/2024] [Indexed: 03/18/2024]
Abstract
When a refractive index modulation of dispersive medium moves at the speed of light in vacuum, an incident electromagnetic wave, depending on its frequency, either is totally transmitted with a phase shift, or forms a standing wave, or is totally reflected with the frequency upshift. The luminal mirror converts a short incident pulse into a wave packet with an infinitely growing in time local frequency near the interface and with an energy spectral density that asymptotically is the inverse square of frequency. If the modulation disappears, the high frequency radiation is released.
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Affiliation(s)
- T Z Esirkepov
- Kansai Institute for Photon Science, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - S V Bulanov
- Kansai Institute for Photon Science, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
- Extreme Light Infrastructure ERIC, ELI-Beamlines Facility, Za Radnici 835, Dolni Brezany 25241, Czech Republic
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2
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Lamač M, Mima K, Nejdl J, Chaulagain U, Bulanov SV. Anomalous Relativistic Emission from Self-Modulated Plasma Mirrors. Phys Rev Lett 2023; 131:205001. [PMID: 38039469 DOI: 10.1103/physrevlett.131.205001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 10/06/2023] [Accepted: 10/16/2023] [Indexed: 12/03/2023]
Abstract
The interaction of intense laser pulses with plasma mirrors has demonstrated the ability to generate high-order harmonics, producing a bright source of extreme ultraviolet (XUV) radiation and attosecond pulses. Here, we report an unexpected transition in this process. We show that the loss of spatiotemporal coherence in the reflected high harmonics can lead to a new regime of highly efficient coherent XUV generation, with an extraordinary property where the radiation is directionally anomalous, propagating parallel to the mirror surface. With analytical calculations and numerical particle-in-cell simulations, we discover that the radiation emission is due to laser-driven oscillations of relativistic electron nanobunches that originate from a plasma surface instability.
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Affiliation(s)
- M Lamač
- ELI Beamlines Facility, The Extreme Light Infrastructure ERIC, Za Radnicí 835, Dolní Břežany 25241, Czechia
- Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, 12116, Czechia
| | - K Mima
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - J Nejdl
- ELI Beamlines Facility, The Extreme Light Infrastructure ERIC, Za Radnicí 835, Dolní Břežany 25241, Czechia
- Faculty of Nuclear Science and Physical Engineering, Czech Technical University in Prague, Břehová 7, Prague 1, 11519, Czechia
| | - U Chaulagain
- ELI Beamlines Facility, The Extreme Light Infrastructure ERIC, Za Radnicí 835, Dolní Břežany 25241, Czechia
| | - S V Bulanov
- ELI Beamlines Facility, The Extreme Light Infrastructure ERIC, Za Radnicí 835, Dolní Břežany 25241, Czechia
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, 8-1-7 Umemidai, Kizugawa, 619-0215 Kyoto, Japan
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3
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Horváth D, Grittani G, Precek M, Versaci R, Bulanov SV, Olšovcová V. Time dynamics of the dose deposited by relativistic ultra-short electron beams. Phys Med Biol 2023; 68:22NT01. [PMID: 37797651 DOI: 10.1088/1361-6560/ad00a3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 10/05/2023] [Indexed: 10/07/2023]
Abstract
Ultra-short electron beams are used as ultra-fast radiation source for radiobiology experiments aiming at very high energy electron beams (VHEE) radiotherapy with very high dose rates. Laser plasma accelerators are capable of producing electron beams as short as 1 fs and with tunable energy from few MeV up to multi-GeV with compact footprint. This makes them an attractive source for applications in different fields, where the ultra-short (fs) duration plays an important role. The time dynamics of the dose deposited by electron beams with energies in the range 50-250 MeV have been studied and the results are presented here. The results set a quantitative limit to the maximum dose rate at which the electron beams can impart dose.
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Affiliation(s)
- D Horváth
- ELI Beamlines Facility, The Extreme Light Infrastructure ERIC, Za Radnicí 835, 252 41 Dolní Břežany, Czech Republic
| | - G Grittani
- ELI Beamlines Facility, The Extreme Light Infrastructure ERIC, Za Radnicí 835, 252 41 Dolní Břežany, Czech Republic
| | - M Precek
- ELI Beamlines Facility, The Extreme Light Infrastructure ERIC, Za Radnicí 835, 252 41 Dolní Břežany, Czech Republic
| | - R Versaci
- ELI Beamlines Facility, The Extreme Light Infrastructure ERIC, Za Radnicí 835, 252 41 Dolní Břežany, Czech Republic
| | - S V Bulanov
- ELI Beamlines Facility, The Extreme Light Infrastructure ERIC, Za Radnicí 835, 252 41 Dolní Břežany, Czech Republic
| | - V Olšovcová
- ELI Beamlines Facility, The Extreme Light Infrastructure ERIC, Za Radnicí 835, 252 41 Dolní Břežany, Czech Republic
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4
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Hadjisolomou P, Jeong TM, Valenta P, Korn G, Bulanov SV. Gamma-ray flash generation in irradiating a thin foil target by a single-cycle tightly focused extreme power laser pulse. Phys Rev E 2021; 104:015203. [PMID: 34412282 DOI: 10.1103/physreve.104.015203] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 06/15/2021] [Indexed: 11/07/2022]
Abstract
We present a regime where an ultraintense laser pulse interacting with a foil target results in high γ-photon conversion efficiency, obtained via three-dimensional quantum-electrodynamics particle-in-cell simulations. A single-cycle laser pulse is used under the tight-focusing condition for obtaining the λ^{3} regime. The simulations employ a radially polarized laser as it results in higher γ-photon conversion efficiency compared to both azimuthal and linear polarizations. A significant fraction of the laser energy is transferred to positrons, while a part of the electromagnetic wave escapes the target as attosecond single-cycle pulses.
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Affiliation(s)
- P Hadjisolomou
- ELI Beamlines Centre, Institute of Physics, Czech Academy of Sciences, Za Radnicí 835, 25241 Dolní Břežany, Czech Republic
| | - T M Jeong
- ELI Beamlines Centre, Institute of Physics, Czech Academy of Sciences, Za Radnicí 835, 25241 Dolní Břežany, Czech Republic
| | - P Valenta
- ELI Beamlines Centre, Institute of Physics, Czech Academy of Sciences, Za Radnicí 835, 25241 Dolní Břežany, Czech Republic
| | - G Korn
- ELI Beamlines Centre, Institute of Physics, Czech Academy of Sciences, Za Radnicí 835, 25241 Dolní Břežany, Czech Republic
| | - S V Bulanov
- ELI Beamlines Centre, Institute of Physics, Czech Academy of Sciences, Za Radnicí 835, 25241 Dolní Břežany, Czech Republic
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5
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Valenta P, Esirkepov TZ, Koga JK, Nečas A, Grittani GM, Lazzarini CM, Klimo O, Korn G, Bulanov SV. Polarity reversal of wakefields driven by ultrashort pulse laser. Phys Rev E 2020; 102:053216. [PMID: 33327156 DOI: 10.1103/physreve.102.053216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 10/25/2020] [Indexed: 06/12/2023]
Abstract
Using an analytical model and computer simulation, we show that the wakefield driven by an ultrashort laser pulse in high-density plasma periodically reverses its polarity due to the carrier-envelope phase shift of the driver. The wakefield polarity reversal occurs on spatial scales shorter than the typical length considered for electron acceleration with the laser-wakefield mechanism. Consequently, the energies of accelerated electrons are significantly affected. The results obtained are important for the laser-wakefield acceleration under the conditions relevant to present-day high-repetition-rate laser systems.
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Affiliation(s)
- P Valenta
- ELI Beamlines, Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 18221, Czech Republic
- Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, Prague 11519, Czech Republic
| | - T Zh Esirkepov
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Umemidai 8-1-7, Kizugawa, Kyoto 619-0215, Japan
| | - J K Koga
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Umemidai 8-1-7, Kizugawa, Kyoto 619-0215, Japan
| | - A Nečas
- TAE Technologies, Pauling 19631, Foothill Ranch, California 92610, USA
| | - G M Grittani
- ELI Beamlines, Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 18221, Czech Republic
| | - C M Lazzarini
- ELI Beamlines, Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 18221, Czech Republic
| | - O Klimo
- ELI Beamlines, Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 18221, Czech Republic
- Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, Prague 11519, Czech Republic
| | - G Korn
- ELI Beamlines, Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 18221, Czech Republic
| | - S V Bulanov
- ELI Beamlines, Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 18221, Czech Republic
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Umemidai 8-1-7, Kizugawa, Kyoto 619-0215, Japan
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6
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Murakami M, Honrubia JJ, Weichman K, Arefiev AV, Bulanov SV. Generation of megatesla magnetic fields by intense-laser-driven microtube implosions. Sci Rep 2020; 10:16653. [PMID: 33024183 PMCID: PMC7538441 DOI: 10.1038/s41598-020-73581-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 09/18/2020] [Indexed: 12/03/2022] Open
Abstract
A microtube implosion driven by ultraintense laser pulses is used to produce ultrahigh magnetic fields. Due to the laser-produced hot electrons with energies of mega-electron volts, cold ions in the inner wall surface implode towards the central axis. By pre-seeding uniform magnetic fields on the kilotesla order, the Lorenz force induces the Larmor gyromotion of the imploding ions and electrons. Due to the resultant collective motion of relativistic charged particles around the central axis, strong spin current densities of \documentclass[12pt]{minimal}
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\begin{document}$$\hbox {cm}^{2}$$\end{document}cm2 are produced with a few tens of nm size, generating megatesla-order magnetic fields. The underlying physics and important scaling are revealed by particle simulations and a simple analytical model. The concept holds promise to open new frontiers in many branches of fundamental physics and applications in terms of ultrahigh magnetic fields.
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Affiliation(s)
- M Murakami
- Institute of Laser Engineering, Osaka University, Suita, Osaka, 565-0871, Japan.
| | - J J Honrubia
- ETSI Aeronáutica y del Espacio, Universidad Politécnica de Madrid, Madrid, Spain
| | - K Weichman
- University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0411, USA
| | - A V Arefiev
- University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0411, USA
| | - S V Bulanov
- Institute of Physics of the ASCR, ELI-Beamlines, Na Slovance 2, 18221, Prague, Czech Republic.,Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto, 619-0215, Japan
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7
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Magnusson J, Gonoskov A, Marklund M, Esirkepov TZ, Koga JK, Kondo K, Kando M, Bulanov SV, Korn G, Bulanov SS. Laser-Particle Collider for Multi-GeV Photon Production. Phys Rev Lett 2019; 122:254801. [PMID: 31347867 DOI: 10.1103/physrevlett.122.254801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Indexed: 06/10/2023]
Abstract
As an alternative to Compton backscattering and bremsstrahlung, the process of colliding high-energy electron beams with strong laser fields can more efficiently provide both a cleaner and brighter source of photons in the multi-GeV range for fundamental studies in nuclear and quark-gluon physics. In order to favor the emission of high-energy quanta and minimize their decay into electron-positron pairs, the fields must not only be sufficiently strong, but also well localized. We here examine these aspects and develop the concept of a laser-particle collider tailored for high-energy photon generation. We show that the use of multiple colliding laser pulses with 0.4 PW of total power is capable of converting more than 18% of multi-GeV electrons passing through the high-field region into photons, each of which carries more than half of the electron initial energy.
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Affiliation(s)
- J Magnusson
- Department of Physics, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
| | - A Gonoskov
- Department of Physics, University of Gothenburg, SE-41296 Gothenburg, Sweden
- Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod 603950, Russia
- Lobachevsky State University of Nizhni Novgorod, Nizhny Novgorod, 603950, Russia
| | - M Marklund
- Department of Physics, University of Gothenburg, SE-41296 Gothenburg, Sweden
| | - T Zh Esirkepov
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - J K Koga
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - K Kondo
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - M Kando
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - S V Bulanov
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
- Institute of Physics ASCR, v.v.i. (FZU), ELI-Beamlines Project, 182 21 Prague, Czech Republic
- Prokhorov General Physics Institute RAS, Vavilov street 38, Moscow 119991, Russia
| | - G Korn
- Institute of Physics ASCR, v.v.i. (FZU), ELI-Beamlines Project, 182 21 Prague, Czech Republic
| | - S S Bulanov
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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8
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Borghesi M, Fuchs J, Bulanov SV, MacKinnon AJ, Patel PK, Roth M. Fast Ion Generation by High-Intensity Laser Irradiation of Solid Targets and Applications. Fusion Science and Technology 2017. [DOI: 10.13182/fst06-a1159] [Citation(s) in RCA: 356] [Impact Index Per Article: 50.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Borghesi
- The Queen’s University, School of Mathematics and Physics, Belfast BT7 1NN, United Kingdom
| | - J. Fuchs
- Laboratoire pour l’Utilisation des Lasers Intenses, UMR 7605 CNRS-CEA-École Polytechnique-Université Paris VI, 91128 Palaiseau 3, France
- University of Nevada, Physics Department, MS-220, Reno, Nevada 89557
| | - S. V. Bulanov
- Kansai Research Establishment, APRC-JAERI, Kizu, Japan
| | - A. J. MacKinnon
- Lawrence Livermore National Laboratory, Livermore, California
| | - P. K. Patel
- Lawrence Livermore National Laboratory, Livermore, California
| | - M. Roth
- Technical University Darmstadt, Darmstadt, Germany
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9
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Yogo A, Mima K, Iwata N, Tosaki S, Morace A, Arikawa Y, Fujioka S, Johzaki T, Sentoku Y, Nishimura H, Sagisaka A, Matsuo K, Kamitsukasa N, Kojima S, Nagatomo H, Nakai M, Shiraga H, Murakami M, Tokita S, Kawanaka J, Miyanaga N, Yamanoi K, Norimatsu T, Sakagami H, Bulanov SV, Kondo K, Azechi H. Boosting laser-ion acceleration with multi-picosecond pulses. Sci Rep 2017; 7:42451. [PMID: 28211913 PMCID: PMC5304168 DOI: 10.1038/srep42451] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 01/09/2017] [Indexed: 11/28/2022] Open
Abstract
Using one of the world most powerful laser facility, we demonstrate for the first time that high-contrast multi-picosecond pulses are advantageous for proton acceleration. By extending the pulse duration from 1.5 to 6 ps with fixed laser intensity of 1018 W cm-2, the maximum proton energy is improved more than twice (from 13 to 33 MeV). At the same time, laser-energy conversion efficiency into the MeV protons is enhanced with an order of magnitude, achieving 5% for protons above 6 MeV with the 6 ps pulse duration. The proton energies observed are discussed using a plasma expansion model newly developed that takes the electron temperature evolution beyond the ponderomotive energy in the over picoseconds interaction into account. The present results are quite encouraging for realizing ion-driven fast ignition and novel ion beamlines.
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Affiliation(s)
- A. Yogo
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
- PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan
| | - K. Mima
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
- The Graduate School for the Creation of New Photon Industries, Hamamatsu, Shizuoka 431-1202, Japan
| | - N. Iwata
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - S. Tosaki
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - A. Morace
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - Y. Arikawa
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - S. Fujioka
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - T. Johzaki
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8511, Japan
| | - Y. Sentoku
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - H. Nishimura
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - A. Sagisaka
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa 619-0215, Kyoto, Japan
| | - K. Matsuo
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - N. Kamitsukasa
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - S. Kojima
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - H. Nagatomo
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - M. Nakai
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - H. Shiraga
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - M. Murakami
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - S. Tokita
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - J. Kawanaka
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - N. Miyanaga
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - K. Yamanoi
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - T. Norimatsu
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - H. Sakagami
- National Institute for Fusion Science, Gifu 509-5292, Japan
| | - S. V. Bulanov
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa 619-0215, Kyoto, Japan
| | - K. Kondo
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa 619-0215, Kyoto, Japan
| | - H. Azechi
- Institute of Laser Engineering, Osaka University, Suita 565-0871, Osaka, Japan
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10
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Gong Z, Hu RH, Shou YR, Qiao B, Chen CE, He XT, Bulanov SS, Esirkepov TZ, Bulanov SV, Yan XQ. High-efficiency γ-ray flash generation via multiple-laser scattering in ponderomotive potential well. Phys Rev E 2017; 95:013210. [PMID: 28208321 DOI: 10.1103/physreve.95.013210] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Indexed: 06/06/2023]
Abstract
γ-ray flash generation in near-critical-density target irradiated by four symmetrical colliding laser pulses is numerically investigated. With peak intensities about 10^{23} W/cm^{2}, the laser pulses boost electron energy through direct laser acceleration, while pushing them inward with the ponderomotive force. After backscattering with counterpropagating laser, the accelerated electron is trapped in the electromagnetic standing waves or the ponderomotive potential well created by the coherent overlapping of the laser pulses, and emits γ-ray photons in a multiple-laser-scattering regime, where electrons act as a medium transferring energy from the laser to γ rays in the ponderomotive potential valley.
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Affiliation(s)
- Z Gong
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - R H Hu
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - Y R Shou
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - B Qiao
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - C E Chen
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - X T He
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
| | - S S Bulanov
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - T Zh Esirkepov
- QuBS, Japan Atomic Energy Agency, Kizugawa, Kyoto 619-0215, Japan
| | - S V Bulanov
- QuBS, Japan Atomic Energy Agency, Kizugawa, Kyoto 619-0215, Japan
- A. M. Prokhorov Institute of General Physics RAS, Moscow 119991, Russia
| | - X Q Yan
- State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
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11
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Gu YJ, Klimo O, Kumar D, Liu Y, Singh SK, Esirkepov TZ, Bulanov SV, Weber S, Korn G. Fast magnetic-field annihilation in the relativistic collisionless regime driven by two ultrashort high-intensity laser pulses. Phys Rev E 2016; 93:013203. [PMID: 26871179 DOI: 10.1103/physreve.93.013203] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Indexed: 11/07/2022]
Abstract
The magnetic quadrupole structure formation during the interaction of two ultrashort high power laser pulses with a collisionless plasma is demonstrated with 2.5-dimensional particle-in-cell simulations. The subsequent expansion of the quadrupole is accompanied by magnetic-field annihilation in the ultrarelativistic regime, when the magnetic field cannot be sustained by the plasma current. This results in a dominant contribution of the displacement current exciting a strong large scale electric field. This field leads to the conversion of magnetic energy into kinetic energy of accelerated electrons inside the thin current sheet.
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Affiliation(s)
- Y J Gu
- Institute of Physics of the ASCR, ELI-Beamlines, Na Slovance 2, 18221 Prague, Czech Republic
| | - O Klimo
- Institute of Physics of the ASCR, ELI-Beamlines, Na Slovance 2, 18221 Prague, Czech Republic.,FNSPE, Czech Technical University in Prague, 11519 Prague, Czech Republic
| | - D Kumar
- Institute of Physics of the ASCR, ELI-Beamlines, Na Slovance 2, 18221 Prague, Czech Republic
| | - Y Liu
- Institute of Physics of the ASCR, ELI-Beamlines, Na Slovance 2, 18221 Prague, Czech Republic
| | - S K Singh
- Institute of Physics of the ASCR, ELI-Beamlines, Na Slovance 2, 18221 Prague, Czech Republic
| | - T Zh Esirkepov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa-shi, Kyoto 619-0215, Japan
| | - S V Bulanov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa-shi, Kyoto 619-0215, Japan
| | - S Weber
- Institute of Physics of the ASCR, ELI-Beamlines, Na Slovance 2, 18221 Prague, Czech Republic
| | - G Korn
- Institute of Physics of the ASCR, ELI-Beamlines, Na Slovance 2, 18221 Prague, Czech Republic
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12
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Jirka M, Klimo O, Bulanov SV, Esirkepov TZ, Gelfer E, Bulanov SS, Weber S, Korn G. Electron dynamics and γ and e(-)e(+) production by colliding laser pulses. Phys Rev E 2016; 93:023207. [PMID: 26986432 DOI: 10.1103/physreve.93.023207] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Indexed: 06/05/2023]
Abstract
The dynamics of an electron bunch irradiated by two focused colliding super-intense laser pulses and the resulting γ and e(-)e(+) production are studied. Due to attractors of electron dynamics in a standing wave created by colliding pulses the photon emission and pair production, in general, are more efficient with linearly polarized pulses than with circularly polarized ones. The dependence of the key parameters on the laser intensity and wavelength allows us to identify the conditions for the cascade development and γe(-)e(+) plasma creation.
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Affiliation(s)
- M Jirka
- Institute of Physics of the CAS, ELI-Beamlines Project, Na Slovance 2, 182 21 Prague, Czech Republic
- Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - O Klimo
- Institute of Physics of the CAS, ELI-Beamlines Project, Na Slovance 2, 182 21 Prague, Czech Republic
- Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
| | - S V Bulanov
- Japan Atomic Energy Agency, Kansai Photon Science Institute, 8-1-7 Umemidai, Kizugawa Kyoto 619-0215, Japan
| | - T Zh Esirkepov
- Japan Atomic Energy Agency, Kansai Photon Science Institute, 8-1-7 Umemidai, Kizugawa Kyoto 619-0215, Japan
| | - E Gelfer
- National Research Nuclear University MEPhI, Kashirskoe shosse 31, Moscow 115409, Russia
| | - S S Bulanov
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - S Weber
- Institute of Physics of the CAS, ELI-Beamlines Project, Na Slovance 2, 182 21 Prague, Czech Republic
| | - G Korn
- Institute of Physics of the CAS, ELI-Beamlines Project, Na Slovance 2, 182 21 Prague, Czech Republic
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13
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Bulanov SS, Esarey E, Schroeder CB, Bulanov SV, Esirkepov TZ, Kando M, Pegoraro F, Leemans WP. Enhancement of maximum attainable ion energy in the radiation pressure acceleration regime using a guiding structure. Phys Rev Lett 2015; 114:105003. [PMID: 25815939 DOI: 10.1103/physrevlett.114.105003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Indexed: 06/04/2023]
Abstract
Radiation pressure acceleration is a highly efficient mechanism of laser-driven ion acceleration, with the laser energy almost totally transferrable to the ions in the relativistic regime. There is a fundamental limit on the maximum attainable ion energy, which is determined by the group velocity of the laser. In the case of tightly focused laser pulses, which are utilized to get the highest intensity, another factor limiting the maximum ion energy comes into play, the transverse expansion of the target. Transverse expansion makes the target transparent for radiation, thus reducing the effectiveness of acceleration. Utilization of an external guiding structure for the accelerating laser pulse may provide a way of compensating for the group velocity and transverse expansion effects.
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Affiliation(s)
- S S Bulanov
- University of California, Berkeley, California 94720, USA
| | - E Esarey
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C B Schroeder
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - S V Bulanov
- Kansai Photon Science Institute, JAEA, Kizugawa, Kyoto 619-0215, Japan
- Prokhorov Institute of General Physics, Russian Academy of Sciences, Moscow 119991, Russia
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region 141700, Russia
| | - T Zh Esirkepov
- Kansai Photon Science Institute, JAEA, Kizugawa, Kyoto 619-0215, Japan
| | - M Kando
- Kansai Photon Science Institute, JAEA, Kizugawa, Kyoto 619-0215, Japan
| | - F Pegoraro
- Physics Department, University of Pisa and Istituto Nazionale di Ottica, CNR, Pisa 56127, Italy
| | - W P Leemans
- University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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14
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Nishiuchi M, Sakaki H, Maeda S, Sagisaka A, Pirozhkov AS, Pikuz T, Faenov A, Ogura K, Kanasaki M, Matsukawa K, Kusumoto T, Tao A, Fukami T, Esirkepov T, Koga J, Kiriyama H, Okada H, Shimomura T, Tanoue M, Nakai Y, Fukuda Y, Sakai S, Tamura J, Nishio K, Sako H, Kando M, Yamauchi T, Watanabe Y, Bulanov SV, Kondo K. Multi-charged heavy ion acceleration from the ultra-intense short pulse laser system interacting with the metal target. Rev Sci Instrum 2014; 85:02B904. [PMID: 24593609 DOI: 10.1063/1.4827111] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Experimental demonstration of multi-charged heavy ion acceleration from the interaction between the ultra-intense short pulse laser system and the metal target is presented. Al ions are accelerated up to 12 MeV/u (324 MeV total energy). To our knowledge, this is far the highest energy ever reported for the case of acceleration of the heavy ions produced by the <10 J laser energy of 200 TW class Ti:sapphire laser system. Adding to that, thanks to the extraordinary high intensity laser field of ∼10(21) W cm(-2), the accelerated ions are almost fully stripped, having high charge to mass ratio (Q/M).
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Affiliation(s)
- M Nishiuchi
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - H Sakaki
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - S Maeda
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A Sagisaka
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A S Pirozhkov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Pikuz
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A Faenov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Ogura
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - M Kanasaki
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Matsukawa
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Kusumoto
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A Tao
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Fukami
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Esirkepov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - J Koga
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - H Kiriyama
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - H Okada
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Shimomura
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - M Tanoue
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - Y Nakai
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - Y Fukuda
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - S Sakai
- Japan Atomic Energy Agency, Tokai, Ibaragi, Japan
| | - J Tamura
- J-PARC Center, Tokai, Ibaragi, Japan
| | - K Nishio
- Japan Atomic Energy Agency, Tokai, Ibaragi, Japan
| | - H Sako
- Japan Atomic Energy Agency, Tokai, Ibaragi, Japan
| | - M Kando
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Yamauchi
- Graduate School of Maritime Science, Kobe University, 5-1-1 Fukaeminami-machi, Higashinada-ku, Kobe 658-0022, Japan
| | - Y Watanabe
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka, Japan
| | - S V Bulanov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Kondo
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
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15
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Pirozhkov AS, Kando M, Esirkepov TZ, Gallegos P, Ahmed H, Ragozin EN, Faenov AY, Pikuz TA, Kawachi T, Sagisaka A, Koga JK, Coury M, Green J, Foster P, Brenner C, Dromey B, Symes DR, Mori M, Kawase K, Kameshima T, Fukuda Y, Chen L, Daito I, Ogura K, Hayashi Y, Kotaki H, Kiriyama H, Okada H, Nishimori N, Imazono T, Kondo K, Kimura T, Tajima T, Daido H, Rajeev P, McKenna P, Borghesi M, Neely D, Kato Y, Bulanov SV. Soft-x-ray harmonic comb from relativistic electron spikes. Phys Rev Lett 2012; 108:135004. [PMID: 22540709 DOI: 10.1103/physrevlett.108.135004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2011] [Indexed: 05/31/2023]
Abstract
We demonstrate a new high-order harmonic generation mechanism reaching the "water window" spectral region in experiments with multiterawatt femtosecond lasers irradiating gas jets. A few hundred harmonic orders are resolved, giving μJ/sr pulses. Harmonics are collectively emitted by an oscillating electron spike formed at the joint of the boundaries of a cavity and bow wave created by a relativistically self-focusing laser in underdense plasma. The spike sharpness and stability are explained by catastrophe theory. The mechanism is corroborated by particle-in-cell simulations.
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Affiliation(s)
- A S Pirozhkov
- Advanced Beam Technology Division, JAEA, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
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16
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Romagnani L, Bigongiari A, Kar S, Bulanov SV, Cecchetti CA, Esirkepov TZ, Galimberti M, Jung R, Liseykina TV, Macchi A, Osterholz J, Pegoraro F, Willi O, Borghesi M. Observation of magnetized soliton remnants in the wake of intense laser pulse propagation through plasmas. Phys Rev Lett 2010; 105:175002. [PMID: 21231052 DOI: 10.1103/physrevlett.105.175002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Indexed: 05/30/2023]
Abstract
Slowly evolving, regularly spaced patterns have been observed in proton projection images of plasma channels drilled by intense (≳10¹⁹ W cm⁻²) short (∼1 ps) laser pulses propagating in an ionized gas jet. The nature and geometry of the electromagnetic fields generating such patterns have been inferred by simulating the laser-plasma interaction and the following plasma evolution with a two-dimensional particle-in-cell code and the probe proton deflections by particle tracing. The analysis suggests the formation of rows of magnetized soliton remnants, with a quasistatic magnetic field associated with vortexlike electron currents resembling those of magnetic vortices.
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Affiliation(s)
- L Romagnani
- Centre for Plasma Physics, The Queen's University of Belfast, United Kingdom
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17
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Chen LM, Liu F, Wang WM, Kando M, Mao JY, Zhang L, Ma JL, Li YT, Bulanov SV, Tajima T, Kato Y, Sheng ZM, Wei ZY, Zhang J. Intense high-contrast femtosecond K-shell x-ray source from laser-driven Ar clusters. Phys Rev Lett 2010; 104:215004. [PMID: 20867110 DOI: 10.1103/physrevlett.104.215004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2010] [Indexed: 05/29/2023]
Abstract
Bright Ar quasimonochromatic K-shell x ray with very little background has been generated using an Ar clustering gas jet target irradiated with a 30 fs ultrahigh-contrast laser, with a measured flux of 2.2×10(11) photons/J into 4π. This intense x-ray source critically depends on the laser contrast and intensity. The optimization of source output with interaction length is addressed. Simulations point to a nonlinear resonant mechanism of electron heating during the early stage of laser interaction, resulting in enhanced x-ray emission. The x-ray pulse duration is expected to be only 10 fs, opening the possibility for single-shot ultrafast keV x-ray imaging applications.
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Affiliation(s)
- L M Chen
- Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100080, China.
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18
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Bulanov SV, Echkina EY, Esirkepov TZ, Inovenkov IN, Kando M, Pegoraro F, Korn G. Unlimited ion acceleration by radiation pressure. Phys Rev Lett 2010; 104:135003. [PMID: 20481890 DOI: 10.1103/physrevlett.104.135003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Indexed: 05/29/2023]
Abstract
The energy of ions accelerated by an intense electromagnetic wave in the radiation pressure dominated regime can be greatly enhanced due to a transverse expansion of a thin target. The expansion decreases the number of accelerated ions in the irradiated region resulting in an increase in the ion energy and in the ion longitudinal velocity. In the relativistic limit, the ions become phase locked with respect to the electromagnetic wave resulting in unlimited ion energy gain.
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Affiliation(s)
- S V Bulanov
- Kansai Photon Science Institute, JAEA, Kizugawa, Kyoto 619-0215, Japan
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19
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Kando M, Pirozhkov AS, Kawase K, Esirkepov TZ, Fukuda Y, Kiriyama H, Okada H, Daito I, Kameshima T, Hayashi Y, Kotaki H, Mori M, Koga JK, Daido H, Faenov AY, Pikuz T, Ma J, Chen LM, Ragozin EN, Kawachi T, Kato Y, Tajima T, Bulanov SV. Enhancement of photon number reflected by the relativistic flying mirror. Phys Rev Lett 2009; 103:235003. [PMID: 20366154 DOI: 10.1103/physrevlett.103.235003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2009] [Revised: 08/30/2009] [Indexed: 05/29/2023]
Abstract
Laser light reflection by a relativistically moving electron density modulation (flying mirror) in a wake wave generated in a plasma by a high intensity laser pulse is investigated experimentally. A counterpropagating laser pulse is reflected and upshifted in frequency with a multiplication factor of 37-66, corresponding to the extreme ultraviolet wavelength. The demonstrated flying mirror reflectivity (from 3 x 10(-6) to 2 x 10(-5), and from 1.3 x 10(-4) to 0.6 x 10(-3), for the photon number and pulse energy, respectively) is close to the theoretical estimate for the parameters of the experiment.
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Affiliation(s)
- M Kando
- Advanced Photon Research Center, JAEA, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
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20
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Zhidkov A, Esirkepov T, Fujii T, Nemoto K, Koga J, Bulanov SV. Characteristics of light reflected from a dense ionization wave with a tunable velocity. Phys Rev Lett 2009; 103:215003. [PMID: 20366045 DOI: 10.1103/physrevlett.103.215003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2009] [Indexed: 05/29/2023]
Abstract
An optically dense ionization wave (IW) produced by two femtosecond (approximately 10/30 fs) laser pulses focused cylindrically and crossing each other may become an efficient coherent x-ray converter in accordance with the Semenova-Lampe theory. The resulting velocity of a quasiplane IW in the vicinity of pulse intersection changes with the angle between the pulses from the group velocity of ionizing pulses to infinity allowing a tuning of the wavelength of x rays and their bunching. The x-ray spectra after scattering of a lower frequency and long coherent light pulse change from the monochromatic to high order harmoniclike with the duration of the ionizing pulses.
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Affiliation(s)
- A Zhidkov
- entral Research Institute of Electric Power Industry, 2-6-1 Nagasaka, Yokosuka, Kanagawa 240-0196, Japan
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21
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Kotaki H, Daito I, Kando M, Hayashi Y, Kawase K, Kameshima T, Fukuda Y, Homma T, Ma J, Chen LM, Esirkepov TZ, Pirozhkov AS, Koga JK, Faenov A, Pikuz T, Kiriyama H, Okada H, Shimomura T, Nakai Y, Tanoue M, Sasao H, Wakai D, Matsuura H, Kondo S, Kanazawa S, Sugiyama A, Daido H, Bulanov SV. Electron optical injection with head-on and countercrossing colliding laser pulses. Phys Rev Lett 2009; 103:194803. [PMID: 20365929 DOI: 10.1103/physrevlett.103.194803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Indexed: 05/29/2023]
Abstract
A high stability electron bunch is generated by laser wakefield acceleration with the help of a colliding laser pulse. The wakefield is generated by a laser pulse; the second laser pulse collides with the first pulse at 180 degrees and at 135 degrees realizing optical injection of an electron bunch. The electron bunch has high stability and high reproducibility compared with single pulse electron generation. In the case of 180 degrees collision, special measures have been taken to prevent damage. In the case of 135 degrees collision, since the second pulse is countercrossing, it cannot damage the laser system.
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Affiliation(s)
- H Kotaki
- Advanced Photon Research Center, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
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22
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Gasilov SV, Faenov AY, Pikuz TA, Fukuda Y, Kando M, Kawachi T, Skobelev IY, Daido H, Kato Y, Bulanov SV. Wide-field-of-view phase-contrast imaging of nanostructures with a comparatively large polychromatic soft x-ray plasma source. Opt Lett 2009; 34:3268-3270. [PMID: 19881563 DOI: 10.1364/ol.34.003268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Polychromatic soft x-ray plasma sources were not previously considered to be among the sources suitable for the propagation based phase contrast imaging because of their comparatively large emission-zone size. In the current work a scheme based on the combination of soft x-ray emission of multicharged ions, generated by the interaction of femtosecond laser pulses with an ultrasonic jet of gas clusters, and an LiF crystal detector was used to obtain phase-enhanced high-resolution images of micro- and nanoscale objects in a wide field of view.
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Affiliation(s)
- S V Gasilov
- Joint Institute for High Temperatures of Russian Academy of Sciences, Izhorskaja Street 13/19, Moscow, Russia.
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23
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Fukuda Y, Faenov AY, Tampo M, Pikuz TA, Nakamura T, Kando M, Hayashi Y, Yogo A, Sakaki H, Kameshima T, Pirozhkov AS, Ogura K, Mori M, Esirkepov TZ, Koga J, Boldarev AS, Gasilov VA, Magunov AI, Yamauchi T, Kodama R, Bolton PR, Kato Y, Tajima T, Daido H, Bulanov SV. Energy increase in multi-MeV ion acceleration in the interaction of a short pulse laser with a cluster-gas target. Phys Rev Lett 2009; 103:165002. [PMID: 19905702 DOI: 10.1103/physrevlett.103.165002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2009] [Indexed: 05/28/2023]
Abstract
An approach for accelerating ions, with the use of a cluster-gas target and an ultrashort pulse laser of 150-mJ energy and 40-fs duration, is presented. Ions with energy 10-20 MeV per nucleon having a small divergence (full angle) of 3.4 degrees are generated in the forward direction, corresponding to approximately tenfold increase in the ion energies compared to previous experiments using solid targets. It is inferred from a particle-in-cell simulation that the high energy ions are generated at the rear side of the target due to the formation of a strong dipole vortex structure in subcritical density plasmas.
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Affiliation(s)
- Y Fukuda
- Kansai Photon Science Institute and Photo-Medical Research Center, JAEA, Kyoto, 615-0215 Japan
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24
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Esirkepov TZ, Bulanov SV, Kando M, Pirozhkov AS, Zhidkov AG. Boosted high-harmonics pulse from a double-sided relativistic mirror. Phys Rev Lett 2009; 103:025002. [PMID: 19659215 DOI: 10.1103/physrevlett.103.025002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2009] [Indexed: 05/28/2023]
Abstract
An ultrabright high-power x- and gamma-radiation source is proposed. A high-density thin plasma slab, accelerating in the radiation pressure dominant regime by an ultraintense electromagnetic wave, reflects a counterpropagating relativistically strong electromagnetic wave, producing extremely time-compressed and intensified radiation. The reflected light contains relativistic harmonics generated at the plasma slab, all upshifted with the same factor as the fundamental mode of the incident light. The theory of an arbitrarily moving thin plasma slab reflectivity is presented.
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Affiliation(s)
- T Zh Esirkepov
- Kansai Photon Science Institute, JAEA, Kizugawa, Kyoto 619-0215, Japan
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25
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Faenov AY, Kato Y, Tanaka M, Pikuz TA, Kishimoto M, Ishino M, Nishikino M, Fukuda Y, Bulanov SV, Kawachi T. Submicrometer-resolution in situ imaging of the focus pattern of a soft x-ray laser by color center formation in LiF crystal. Opt Lett 2009; 34:941-943. [PMID: 19340178 DOI: 10.1364/ol.34.000941] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We demonstrate high quality, single-shot in situ imaging of the focused Ag x-ray laser (XRL) at 13.9 nm with 700 nm spatial resolution by color center formation in LiF. The flux and intensity for the color center formation in LiF are evaluated from the experimental data. Comparisons with previous reports show that the threshold x-ray flux for the color center formation in LiF for the 13.9 nm, 7 ps Ag XRL is 3 orders of magnitude less than that with the 46.9 nm, 2 ns capillary discharge Ar XRL.
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Affiliation(s)
- A Ya Faenov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kyoto, Japan.
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26
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Abstract
We show a new effect of the bow-wave excitation by an intense short laser pulse propagating in underdense plasma. Because of spreading of the laser pulse energy in transverse direction, the bow wave causes a large-scale transverse modulation of the electron density. This can significantly increase the electric potential of the wake wave since the wake wave is generated in the region much wider than the laser pulse waist.
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Affiliation(s)
- T Zh Esirkepov
- Advanced Photon Research Center, JAEA, Umemidai 8-1, Kizugawa, Kyoto 619-0215, Japan
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27
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Panchenko AV, Esirkepov TZ, Pirozhkov AS, Kando M, Kamenets FF, Bulanov SV. Interaction of electromagnetic waves with caustics in plasma flows. Phys Rev E Stat Nonlin Soft Matter Phys 2008; 78:056402. [PMID: 19113221 DOI: 10.1103/physreve.78.056402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2008] [Indexed: 05/27/2023]
Abstract
An electromagnetic wave (EMW) interacting with the moving singularity of the charged particle flux undergoes the reflection and absorption as well as frequency change due to Doppler effect and nonlinearity. The singularity corresponding to a caustic in plasma flow with inhomogeneous velocity can arise during the breaking of the finite amplitude Langmuir waves due to nonlinear effects. A systematic analysis of the wave-breaking regimes and caustics formation is presented and the EMW reflection coefficients are calculated.
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Affiliation(s)
- A V Panchenko
- Moscow Institute of Physics and Technology, Institutskii pereulok 9, Dolgoprudnyi, Moscow Region, 141700 Russia
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28
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Romagnani L, Bulanov SV, Borghesi M, Audebert P, Gauthier JC, Löwenbrück K, Mackinnon AJ, Patel P, Pretzler G, Toncian T, Willi O. Observation of collisionless shocks in laser-plasma experiments. Phys Rev Lett 2008; 101:025004. [PMID: 18764188 DOI: 10.1103/physrevlett.101.025004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2008] [Indexed: 05/26/2023]
Abstract
The propagation in a rarefied plasma (n(e) < or approximately 10(15) cm(-3)) of collisionless shock waves and ion-acoustic solitons, excited following the interaction of a long (tauL approximately 470 ps) and intense (I approximately 10(15) W cm(-2)) laser pulse with solid targets, has been investigated via proton probing techniques. The shocks' structures and related electric field distributions were reconstructed with high spatial and temporal resolution. The experimental results were interpreted within the framework of the nonlinear wave description based on the Korteweg-de Vries-Burgers equation.
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Affiliation(s)
- L Romagnani
- School of Mathematics and Physics, The Queen's University of Belfast, Belfast, Northern Ireland, United Kingdom.
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29
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Kar S, Borghesi M, Bulanov SV, Key MH, Liseykina TV, Macchi A, Mackinnon AJ, Patel PK, Romagnani L, Schiavi A, Willi O. Plasma jets driven by ultraintense-laser interaction with thin foils. Phys Rev Lett 2008; 100:225004. [PMID: 18643426 DOI: 10.1103/physrevlett.100.225004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2007] [Indexed: 05/26/2023]
Abstract
Experimental evidence of plasma jets ejected from the rear side of thin solid targets irradiated by ultraintense (>10(19) W cm(-2)) laser pulses is presented. The jets, detected by transverse interferometric measurements with high spatial and temporal resolutions, show collimated expansion lasting for several hundreds of picoseconds and have substantially steep density gradients at their periphery. The role played by radiation pressure of the laser in the jet formation process is highlighted analytically and by extensive two-dimensional particle-in-cell simulations.
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Affiliation(s)
- S Kar
- School of Mathematics and Physics, Queen's University, Belfast, BT7 1NN, United Kingdom.
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30
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Kawase K, Kando M, Hayakawa T, Daito I, Kondo S, Homma T, Kameshima T, Kotaki H, Chen LM, Fukuda Y, Faenov A, Shizuma T, Fujiwara M, Bulanov SV, Kimura T, Tajima T. Sub-MeV tunably polarized X-ray production with laser Thomson backscattering. Rev Sci Instrum 2008; 79:053302. [PMID: 18513062 DOI: 10.1063/1.2931010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Reported in this article is the generation of unique polarized x-rays in the sub-MeV region by means of the Thomson backscattering of the Nd:YAG laser photon with a wavelength of 1064 nm on the 150 MeV electron from the microtron accelerator. The maximum energy of the x-ray photons is estimated to be about 400 keV. The total energy of the backscattered x-ray pulse is measured with an imaging plate and a LYSO scintillator. The angular divergence of the x-rays is also measured by using the imaging plate. We confirm that the x-ray beam is polarized according to the laser polarization direction with the Compton scattering method. In addition, we demonstrate the imaging of the object shielded by lead with the generated x-rays.
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Affiliation(s)
- K Kawase
- Kansai Photon Science Institute, Japan Atomic Energy Agency, 8-1 Umemidai, Kizugawa, Kyoto 619-0215, Japan
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31
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Morita T, Esirkepov TZ, Bulanov SV, Koga J, Yamagiwa M. Tunable high-energy ion source via oblique laser pulse incident on a double-layer target. Phys Rev Lett 2008; 100:145001. [PMID: 18518041 DOI: 10.1103/physrevlett.100.145001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2007] [Indexed: 05/26/2023]
Abstract
The laser-driven acceleration of high quality proton beams from a double-layer target, comprised of a high-Z ion layer and a thin disk of hydrogen, is investigated with three-dimensional particle-in-cell simulations for an obliquely incident laser pulse. The proton beam energy reaches its maximum at a certain incidence angle, where it can be much greater than the energy at normal incidence. The proton beam propagates at some angle with respect to the target surface normal and with some tilt around the target surface, as determined by the proton energy and the incidence angle.
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Affiliation(s)
- T Morita
- Japan Atomic Energy Agency, 8-1 Umemidai, Kizugawa, Kyoto 619-0215, Japan
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32
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Chen LM, Kando M, Xu MH, Li YT, Koga J, Chen M, Xu H, Yuan XH, Dong QL, Sheng ZM, Bulanov SV, Kato Y, Zhang J, Tajima T. Study of x-ray emission enhancement via a high-contrast femtosecond laser interacting with a solid foil. Phys Rev Lett 2008; 100:045004. [PMID: 18352290 DOI: 10.1103/physrevlett.100.045004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2006] [Indexed: 05/26/2023]
Abstract
We observed the increase of the conversion efficiency from laser energy to Kalpha x-ray energy (eta(K)) produced by a 60 fs frequency doubled high-contrast laser pulse focused on a Cu foil, compared to the case of the fundamental laser pulse. eta(K) shows a strong dependence on the nonlinearly modified rising edge of the laser pulse. It reaches a maximum for a 100 fs negatively modified pulse. The hot electron efficient heating leads to the enhancement of eta(K). This demonstrates that high-contrast lasers are an effective tool for optimizing eta(K), via increasing the hot electrons by vacuum heating.
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Affiliation(s)
- L M Chen
- Advanced Photon Research Center, Kansai Photon Science Institute, JAEA, Kyoto 619-0215, Japan
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33
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Yogo A, Daido H, Bulanov SV, Nemoto K, Oishi Y, Nayuki T, Fujii T, Ogura K, Orimo S, Sagisaka A, Ma JL, Esirkepov TZ, Mori M, Nishiuchi M, Pirozhkov AS, Nakamura S, Noda A, Nagatomo H, Kimura T, Tajima T. Laser ion acceleration via control of the near-critical density target. Phys Rev E Stat Nonlin Soft Matter Phys 2008; 77:016401. [PMID: 18351938 DOI: 10.1103/physreve.77.016401] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2007] [Indexed: 05/26/2023]
Abstract
Duration-controlled amplified spontaneous emission with an intensity of 10(13) W/cm(2) is used to convert a 7.5-microm -thick polyimide foil into a near-critical plasma, in which the p -polarized, 45-fs , 10(19) -Wcm (2) laser pulse generates 3.8-MeV protons, emitted at some angle between the target normal and the laser propagation direction of 45 degrees . Particle-in-cell simulations reveal that the efficient proton acceleration is due to the generation of a quasistatic magnetic field on the target rear side with magnetic pressure inducing and sustaining a charge separation electrostatic field.
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Affiliation(s)
- A Yogo
- Kansai Photon Science Institute, Japan Atomic Energy Agency (JAEA), Kyoto 619-0215, Japan
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34
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Kando M, Fukuda Y, Pirozhkov AS, Ma J, Daito I, Chen LM, Esirkepov TZ, Ogura K, Homma T, Hayashi Y, Kotaki H, Sagisaka A, Mori M, Koga JK, Daido H, Bulanov SV, Kimura T, Kato Y, Tajima T. Demonstration of laser-frequency upshift by electron-density modulations in a plasma wakefield. Phys Rev Lett 2007; 99:135001. [PMID: 17930598 DOI: 10.1103/physrevlett.99.135001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2007] [Indexed: 05/25/2023]
Abstract
In a plasma wake wave generated by a high power laser, modulations of the electron density take the shape of paraboloidal dense shells, moving almost at the speed of light. A counterpropagating laser pulse is partially reflected from the shells, acting as relativistic flying mirrors, producing a time-compressed frequency-multiplied pulse due to the double Doppler effect. The counterpropagating laser pulse reflection from the plasma wake wave accompanied by its frequency multiplication (with a factor from 50 to 114) was detected in our experiment.
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Affiliation(s)
- M Kando
- Advanced Photon Research Center, JAEA, 8-1 Umemidai, Kizugawa, Kyoto 619-0215, Japan
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35
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Pegoraro F, Bulanov SV. Photon bubbles and ion acceleration in a plasma dominated by the radiation pressure of an electromagnetic pulse. Phys Rev Lett 2007; 99:065002. [PMID: 17930836 DOI: 10.1103/physrevlett.99.065002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2007] [Indexed: 05/25/2023]
Abstract
The stability of a thin plasma foil accelerated by the radiation pressure of a high intensity electromagnetic (e.m.) pulse is investigated analytically and with particle in cell numerical simulations. It is shown that the onset of a Rayleigh-Taylor-like instability can lead to transverse bunching of the foil and to broadening of the energy spectrum of fast ions. The use of a properly tailored e.m. pulse with a sharp intensity rise can stabilize the foil acceleration.
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Affiliation(s)
- F Pegoraro
- Physics Dept. and CNISM, University of Pisa, Pisa, Italy
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36
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Bulanov SV, Esirkepov TZ. Comment on "Collimated multi-MeV ion beams from high-intensity laser interactions with underdense plasma". Phys Rev Lett 2007; 98:049503; discussion 049504. [PMID: 17358823 DOI: 10.1103/physrevlett.98.049503] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2006] [Indexed: 05/14/2023]
Affiliation(s)
- S V Bulanov
- Kansai Photon Science Institute Japan Atomic Energy Agency Umemidai 8-1, Kizu, Kyoto 619-0215, Japan
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37
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Esirkepov T, Bulanov SV, Yamagiwa M, Tajima T. Electron, positron, and photon wakefield acceleration: trapping, wake overtaking, and ponderomotive acceleration. Phys Rev Lett 2006; 96:014803. [PMID: 16486465 DOI: 10.1103/physrevlett.96.014803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2005] [Indexed: 05/06/2023]
Abstract
The electron, positron, and photon acceleration in the first cycle of a laser-driven wakefield is investigated. Separatrices between different types of the particle motion (trapped, reflected by the wakefield and ponderomotive potential, and transient) are demonstrated. The ponderomotive acceleration of electrons can be largely compensated by the wakefield action, in contrast to positrons and positively charged mesons. The electron bunch energy spectrum is analyzed. The maximum upshift of an electromagnetic wave frequency during reflection from the wakefield is obtained.
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Affiliation(s)
- T Esirkepov
- Kansai Research Establishment, JAEA, Kizu, Kyoto, 619-0215 Japan
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38
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Borghesi M, Bulanov SV, Esirkepov TZ, Fritzler S, Kar S, Liseikina TV, Malka V, Pegoraro F, Romagnani L, Rousseau JP, Schiavi A, Willi O, Zayats AV. Plasma ion evolution in the wake of a high-intensity ultrashort laser pulse. Phys Rev Lett 2005; 94:195003. [PMID: 16090181 DOI: 10.1103/physrevlett.94.195003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2004] [Indexed: 05/03/2023]
Abstract
Experimental investigations of the late-time ion structures formed in the wake of an ultrashort, intense laser pulse propagating in a tenuous plasma have been performed using the proton imaging technique. The pattern found in the wake of the laser pulse shows unexpectedly regular modulations inside a long, finite width channel. On the basis of extensive particle in cell simulations of the plasma evolution in the wake of the pulse, we interpret this pattern as due to ion modulations developed during a two-stream instability excited by the return electric current generated by the wakefield.
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Affiliation(s)
- M Borghesi
- School of Mathematics and Physics, The Queen's University of Belfast, UK
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39
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Esirkepov T, Borghesi M, Bulanov SV, Mourou G, Tajima T. Highly efficient relativistic-ion generation in the laser-piston regime. Phys Rev Lett 2004; 92:175003. [PMID: 15169160 DOI: 10.1103/physrevlett.92.175003] [Citation(s) in RCA: 160] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2003] [Indexed: 05/24/2023]
Abstract
An intense laser-plasma interaction regime of the generation of high density ultrashort relativistic ion beams is suggested. When the radiation pressure is dominant, the laser energy is transformed efficiently into the energy of fast ions.
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Affiliation(s)
- T Esirkepov
- Kansai Research Establishment, JAERI, Umemidai 8-1 Kizu, Kyoto 619-0215, Japan
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40
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Califano F, Pegoraro F, Bulanov SV. Propagation of a short proton beam through a thin plasma slab. Phys Rev E Stat Nonlin Soft Matter Phys 2004; 68:066406. [PMID: 14754326 DOI: 10.1103/physreve.68.066406] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2003] [Indexed: 11/07/2022]
Abstract
A one-dimensional open boundary Vlasov code is used in order to investigate the propagation of a short proton beam through a plasma slab. Collisionless regimes are assumed, where the interaction between the beam and the plasma occurs due to the self-consistent, collective, electric field. Both charge compensated (by an accompanying electron cloud) and noncompensated beams are considered.
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Affiliation(s)
- F Califano
- Department of Physics and INFM, Pisa University, Pisa, Italy
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41
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42
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Matsukado K, Esirkepov T, Kinoshita K, Daido H, Utsumi T, Li Z, Fukumi A, Hayashi Y, Orimo S, Nishiuchi M, Bulanov SV, Tajima T, Noda A, Iwashita Y, Shirai T, Takeuchi T, Nakamura S, Yamazaki A, Ikegami M, Mihara T, Morita A, Uesaka M, Yoshii K, Watanabe T, Hosokai T, Zhidkov A, Ogata A, Wada Y, Kubota T. Energetic protons from a few-micron metallic foil evaporated by an intense laser pulse. Phys Rev Lett 2003; 91:215001. [PMID: 14683311 DOI: 10.1103/physrevlett.91.215001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2003] [Indexed: 05/24/2023]
Abstract
With detailed experimental studies and hydrodynamics and particle-in-cell simulations we investigate the role of the prepulse in laser proton acceleration. The prepulse or pedestal (amplified spontaneous emission) can completely evaporate the irradiated region of a sufficiently thin foil; therefore, the main part of the laser pulse interacts with an underdense plasma. The multiparametric particle-in-cell simulations demonstrate that the main pulse generates the quasistatic magnetic field, which in its turn produces the long-lived charge separation electrostatic field, accelerating the ions.
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Affiliation(s)
- K Matsukado
- National Institute of Radiological Science, Japan
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43
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Bulanov SV, Esirkepov TZ, Naumova NM, Sokolov IV. High-order harmonics from an ultraintense laser pulse propagating inside a fiber. Phys Rev E Stat Nonlin Soft Matter Phys 2003; 67:016405. [PMID: 12636609 DOI: 10.1103/physreve.67.016405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2002] [Indexed: 05/24/2023]
Abstract
A strong effect of high harmonic radiation during the propagation of a high intensity short laser pulse in a thin wall hollow channel ("fiber") is found and studied via relativistic particle-in-cell simulations. The fiber has finite width walls comprised of an overdense plasma. Only the harmonic radiation with the harmonic number above critical value, for which the fiber walls are transparent, propagates outwards in the form of a coherent ultrashort pulse with very short wavelength.
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Affiliation(s)
- S V Bulanov
- General Physics Institute RAS, Vavilov Street 38, Moscow 119991, Russia.
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44
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Esirkepov TZ, Bulanov SV, Nishihara K, Tajima T, Pegoraro F, Khoroshkov VS, Mima K, Daido H, Kato Y, Kitagawa Y, Nagai K, Sakabe S. Proposed double-layer target for the generation of high-quality laser-accelerated ion beams. Phys Rev Lett 2002; 89:175003. [PMID: 12398678 DOI: 10.1103/physrevlett.89.175003] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2002] [Indexed: 05/24/2023]
Abstract
In order to achieve a high-quality, i.e., monoenergetic, intense ion beam, we propose the use of a double-layer target. The first layer, at the target front, consists of high-Z atoms, while the second (rear) layer is a thin coating of low-Z atoms. The generation of high-quality proton beams from the double-layer target, irradiated by an ultraintense laser pulse, is demonstrated with three-dimensional particle-in-cell simulations.
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Affiliation(s)
- T Zh Esirkepov
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
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45
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Bulanov SV, Pegoraro F. Stability of a mass accreting shell expanding in a plasma. Phys Rev E Stat Nonlin Soft Matter Phys 2002; 65:066405. [PMID: 12188833 DOI: 10.1103/physreve.65.066405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2001] [Indexed: 05/23/2023]
Abstract
A linearized analysis is presented of the stability of a shell which accretes mass as it expands in a plasma under the push of the electromagnetic radiation trapped inside it. The interaction with the radiation is described in terms of a ponderomotive force and the shell dynamics is treated within the snowplow approximation. The mass accretion and the radiation expansion are shown to affect the stability of planar, cylindrical, and spherical shells differently.
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Affiliation(s)
- S V Bulanov
- General Physics Institute, Russian Academy of Sciences, Vavilov Street 38, 119991 Moscow, Russia
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46
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Naumova NM, Bulanov SV, Nishihara K, Esirkepov TZ, Pegoraro F. Polarization effects and anisotropy in three-dimensional relativistic self-focusing. Phys Rev E Stat Nonlin Soft Matter Phys 2002; 65:045402. [PMID: 12005914 DOI: 10.1103/physreve.65.045402] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2001] [Indexed: 05/23/2023]
Abstract
The relativistic self-focusing of high-intensity laser pulses in underdense plasmas is investigated with three-dimensional particle in cell simulations. The different behavior of a linearly polarized pulse in the two transverse directions is interpreted as a combination of two two-dimensional responses with different polarizations. In the polarization plane a high density sheet is formed, which separates the two regions of oppositely directed quasistatic magnetic field.
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Affiliation(s)
- N M Naumova
- Max-Born Institute für Quantenoptik, Berlin, Germany
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47
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Bobrova NA, Esaulov AA, Sakai JI, Sasorov PV, Spence DJ, Butler A, Hooker SM, Bulanov SV. Simulations of a hydrogen-filled capillary discharge waveguide. Phys Rev E Stat Nonlin Soft Matter Phys 2002; 65:016407. [PMID: 11800790 DOI: 10.1103/physreve.65.016407] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2001] [Indexed: 05/23/2023]
Abstract
A one-dimensional dissipative magnetohydrodynamics code is used to investigate the discharge dynamics of a waveguide for high-intensity laser pulses: the gas-filled capillary discharge waveguide. Simulations are performed for the conditions of a recent experimental measurement of the electron density profile in hydrogen-filled capillaries [D. J. Spence et al., Phys. Rev. E 63, 015401 (R) (2001)], and are found to be in good agreement with those results. The evolution of the discharge in this device is found to be substantially different to that found in Z-pinch capillary discharges, owing to the fact that the plasma pressure is always much higher than the magnetic pressure. Three stages of the capillary discharge are identified. During the last of these the distribution of plasma inside the capillary is determined by the balance between ohmic heating, and cooling due to electron heat conduction. A simple analytical model of the discharge during the final stage is presented, and shown to be in good agreement with the magnetohydrodynamic simulations.
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Affiliation(s)
- N A Bobrova
- Institute for Theoretical and Experimental Physics, Bol'shaya Cheremushkinskaya Street 25, 117259 Moscow, Russia
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48
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Abstract
We demonstrate that a dark soliton is a stable nonlinear coherent mode in electron-positron plasmas. The dark soliton comprises the minimum of the electromagnetic energy density and the minimum of the plasma density. Contrary to a bright soliton, the dark soliton can advect the trapped charged particles. The energy of trapped particles is well above the kinetic energy of the particles in the background plasma.
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Affiliation(s)
- D Farina
- Istituto di Fisica del Plasma, Consiglio Nazionale delle Ricerche, Milano, Italy
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49
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Sheng ZM, Nishihara K, Honda T, Sentoku Y, Mima K, Bulanov SV. Anisotropic filamentation instability of intense laser beams in plasmas near the critical density. Phys Rev E Stat Nonlin Soft Matter Phys 2001; 64:066409. [PMID: 11736284 DOI: 10.1103/physreve.64.066409] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2001] [Indexed: 05/23/2023]
Abstract
The relativistic filamentation instability (RFI) of linearly polarized intense laser beams in plasmas near the critical density is investigated. It is found that the RFI is anisotropic to transverse perturbations in this case; a homogeneous laser beam evolves to a stratified structure parallel to the laser polarization direction, as demonstrated recently with three-dimensional particle-in-cell simulations by Nishihara et al. [Proc. SPIE 3886, 90 (2000)]. A weakly relativistic theory is developed for plasmas near the critical density. It shows that the anisotropy of the RFI results from a suppression of the instability in the laser polarization direction due to the electrostatic response. The anisotropic RFI is also analyzed based on an envelope equation for the laser beam. Finally, the envelope equation is solved numerically, and anisotropic filamentation and self-focusing are illustrated.
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Affiliation(s)
- Z M Sheng
- Institute of Laser Engineering, Osaka University, Yamada-oka 2-6, Suita, Osaka 565-0871, Japan
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50
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Pegoraro F, Bulanov SV, Sakai JI, Tomassini G. Three-dimensional singularities of a thin plasma slab. Phys Rev E Stat Nonlin Soft Matter Phys 2001; 64:016415. [PMID: 11461418 DOI: 10.1103/physreve.64.016415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2000] [Revised: 03/26/2001] [Indexed: 05/23/2023]
Abstract
The three-dimensional (3D) nonlinear development of the interchange-like (Rayleigh-Taylor) instability of a thin slab of plasma exhibits interesting features with respect to its two-dimensional (2D) limit investigated by Bulanov, Pegoraro, and Sakai [Phys. Rev. E 59, 2292 (1999)]. We show that, contrary to the 2D case, the 3D evolution equations remain nonlinear when Lagrangian variables are adopted. Explicit solutions are found by the use of a generalized hodograph transformation. Both compression and rarefaction singularities are formed. Local solutions in the neighborhood of the singular points have a generic 2D character.
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Affiliation(s)
- F Pegoraro
- Physics Department of the University of Pisa and INFM, Pisa 56100, Italy
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