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Merici TA, De Mattos TG, Peixoto De Faria JG. Degeneracy and Photon Trapping in a Dissipationless Two-Mode Optomechanical Model. Entropy (Basel) 2024; 26:87. [PMID: 38275495 PMCID: PMC10813945 DOI: 10.3390/e26010087] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/09/2024] [Accepted: 01/12/2024] [Indexed: 01/27/2024]
Abstract
In this work, we theoretically study a finite and undamped two-mode optomechanical model consisting of a high quality optical cavity containing a thin, elastic, and dielectric membrane. The main objective is to investigate the precursors of quantum phase transition in such a model by studying the behavior of some observables in the ground state. By controlling the coupling between membrane and modes, we find that the two lowest energy eigenstates become degenerate, as is indicated by the behavior of the mean value of some operators and by other quantifiers as a function of the coupling. Such degenerate states are characterized by a coherent superposition of eigenstates describing one of the two modes preferentially populated and the membrane dislocated from its equilibrium position due the radiation pressure (Schrödinger's cat states). The delocalization of the compound system photons+membrane results in an increase in fluctuations as measured by Robertson-Schrödinger uncertainty relations.
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Affiliation(s)
- Thiago Alonso Merici
- Programa de Pós-Graduação em Modelagem Matemática e Computacional, Centro Federal de Educação Tecnológica de Minas Gerais (CEFET-MG), Av. Amazonas 7675, Belo Horizonte 30510-000, MG, Brazil; (T.A.M.); (T.G.D.M.)
| | - Thiago Gomes De Mattos
- Programa de Pós-Graduação em Modelagem Matemática e Computacional, Centro Federal de Educação Tecnológica de Minas Gerais (CEFET-MG), Av. Amazonas 7675, Belo Horizonte 30510-000, MG, Brazil; (T.A.M.); (T.G.D.M.)
- Departamento de Física, Centro Federal de Educação Tecnológica de Minas Gerais (CEFET-MG), Av. Amazonas 7675, Belo Horizonte 30510-000, MG, Brazil
| | - José Geraldo Peixoto De Faria
- Programa de Pós-Graduação em Modelagem Matemática e Computacional, Centro Federal de Educação Tecnológica de Minas Gerais (CEFET-MG), Av. Amazonas 7675, Belo Horizonte 30510-000, MG, Brazil; (T.A.M.); (T.G.D.M.)
- Departamento de Matemática, Centro Federal de Educação Tecnológica de Minas Gerais (CEFET-MG), Av. Amazonas 7675, Belo Horizonte 30510-000, MG, Brazil
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Pelka K, Madiot G, Braive R, Xuereb A. Floquet Control of Optomechanical Bistability in Multimode Systems. Phys Rev Lett 2022; 129:123603. [PMID: 36179176 DOI: 10.1103/physrevlett.129.123603] [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: 07/01/2021] [Revised: 04/25/2022] [Accepted: 07/19/2022] [Indexed: 06/16/2023]
Abstract
Cavity optomechanical systems make possible the fine manipulation of mechanical degrees of freedom with light, adding functionality and having broad appeal in photonic technologies. We show that distinct mechanical modes can be exploited with a temporally modulated Floquet drive to steer between distinct steady states induced by changes of cavity radiation pressure. We investigate the additional influence of the thermo-optic nonlinearity on these dynamics and find that it can suppress or amplify the control mechanism in contrast to its often performance-limiting character. Our results provide new techniques for the characterization of thermal properties of optomechanical systems and their control, sensing and computational applications.
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Affiliation(s)
- Karl Pelka
- Department of Physics, University of Malta, Msida MSD 2080, Malta
| | - Guilhem Madiot
- Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Saclay, F-91120 Palaiseau, France
| | - Rémy Braive
- Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Saclay, F-91120 Palaiseau, France
- Université de Paris, F-75006 Paris, France
- Institut Universitaire de France, F-75231 Paris, France
| | - André Xuereb
- Department of Physics, University of Malta, Msida MSD 2080, Malta
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Baraillon J, Taurel B, Labeye P, Duraffourg L. A lensed fiber Bragg grating-based membrane-in-the-middle optomechanical cavity. Sci Rep 2022; 12:4937. [PMID: 35322110 PMCID: PMC8943148 DOI: 10.1038/s41598-022-08960-0] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 03/14/2022] [Indexed: 11/09/2022] Open
Abstract
Optomechanical systems benefit from the coupling between an optical field and mechanical vibrations. Fiber-based devices are well suited to easily exploit this interaction. We report an alternative approach of a silicon nitride membrane-in-the-middle of a high quality factor ([Formula: see text]-[Formula: see text]) Fabry-Perot, formed by a grating inscribed within a fiber core as an input mirror in front of a dielectric back mirror. The Pound-Drever-Hall technique used to stabilize the laser frequency on the optical resonance frequency allows us to reduce the low frequency noise down to [Formula: see text]. We present a detailed methodology for the characterization of the optical and optomechanical properties of this stabilized system, using various membrane geometries, with corresponding resonance frequencies in the range of several hundred of [Formula: see text]. The excellent long-term stability is illustrated by continuous measurements of the thermomechanical noise spectrum over several days, with the laser source maintained at optical resonance. This major result makes this system an ideal candidate for optomechanical sensing.
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Affiliation(s)
- Joris Baraillon
- Commissariat à l'Energie Atomique, LETI, Université Grenoble Alpes, 38054, Grenoble, France
| | - Boris Taurel
- Commissariat à l'Energie Atomique, LETI, Université Grenoble Alpes, 38054, Grenoble, France
| | - Pierre Labeye
- Commissariat à l'Energie Atomique, LETI, Université Grenoble Alpes, 38054, Grenoble, France
| | - Laurent Duraffourg
- Commissariat à l'Energie Atomique, LETI, Université Grenoble Alpes, 38054, Grenoble, France.
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Toft-Vandborg C, Parthenopoulos A, Darki AA, Dantan A. Collimation and finite-size effects in suspended resonant guided-mode gratings. J Opt Soc Am A Opt Image Sci Vis 2021; 38:1714-1725. [PMID: 34807033 DOI: 10.1364/josaa.440215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/05/2021] [Indexed: 06/13/2023]
Abstract
The optical transmission of resonant guided-mode gratings patterned on suspended silicon nitride thin films and illuminated at normal incidence with a Gaussian beam is investigated both experimentally and theoretically. Effects due to the beam focusing and its finite size are accounted for by a phenomenological coupled-mode model whose predictions are found to be in very good agreement with the experimentally measured spectra for various grating structures and beam sizes, and which allow for a detailed analysis of the respective magnitude of these effects. These results are highly relevant for the design and optimization of such suspended structured films that are widely used for photonics, sensing, and optomechanics applications.
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Poudel K, Park S, Hwang J, Ku SK, Yong CS, Kim JO, Byeon JH. Photothermally Modulatable and Structurally Disintegratable Sub-8-nm Au 1Ag 9 Embedded Nanoblocks for Combination Cancer Therapy Produced by Plug-in Assembly. ACS Nano 2020; 14:11040-11054. [PMID: 32816451 DOI: 10.1021/acsnano.9b09731] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
As well as the exploration of translatable delivery nanosystems for cancer therapeutic agents, the development of automatable continuous-flow manufacturing technology comprising digitally controlled reactions for the on-demand production of pharmaceuticals is an important challenge in anticancer nanomedicine. Most attempts to resolve these issues have involved the development of alternative reactions, formulations, or constructs containing stimulus components aimed at producing multiple approaches for highly efficacious combination cancer therapies. However, there has been no report of a platform based on plug-in execution that enables continuous-flow manufacture in a compact, reconfigurable manner, although an optimal platform technology may be a prerequisite for the timely translation of recently developed nanomedicines. To this end, we describe the development of a platform toward digitizable, continuous manufacture by a serial combination of plug-in reactionwares (heating plates, a spraying cup, and a photochamber) for single-pass flow fabrication. Specifically, we fabricated three different composite nanoblocks consisting of Au1Ag9 (<8 nm; stimulus component), docetaxel (an anticancer drug), and bovine serum albumin (a protective and targeting agent) using our system, with the result of producing nanoblocks with photothermally modulatable and structurally disintegratable properties. These were examined for effectiveness in near-infrared-induced chemothermal cancer therapy and renal excretion of Au1Ag9 particles and exhibited high anticancer efficacy and warrantable biosafety.
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Affiliation(s)
- Kishwor Poudel
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Sungjae Park
- School of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jungho Hwang
- School of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine, Daegu Haany University, Gyeongsan 38610, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Jeong Hoon Byeon
- School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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Erbil SO, Hatipoglu U, Yanik C, Ghavami M, Ari AB, Yuksel M, Hanay MS. Full Electrostatic Control of Nanomechanical Buckling. Phys Rev Lett 2020; 124:046101. [PMID: 32058788 DOI: 10.1103/physrevlett.124.046101] [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: 09/06/2019] [Indexed: 06/10/2023]
Abstract
Buckling of mechanical structures results in bistable states with spatial separation, a feature desirable for sensing, shape configuration, and mechanical computation. Although different approaches have been developed to access buckling at microscopic scales, such as heating or prestressing beams, little attention has been paid so far to dynamically control all the parameters critical for the bifurcation-the compressive stress and the lateral force on the beam. Here, we develop an all-electrostatic architecture to control the compressive force, as well as the direction and amount of buckling, without significant heat generation on micro- or nanostructures. With this architecture, we demonstrated fundamental aspects of device function and dynamics. By applying voltages at any of the digital electronics standards, we have controlled the direction of buckling. Lateral deflections as large as 12% of the beam length were achieved. By modulating the compressive stress and lateral electrostatic force acting on the beam, we tuned the potential energy barrier between the postbifurcation stable states and characterized snap-through transitions between these states. The proposed architecture opens avenues for further studies in actuators, shape-shifting devices, thermodynamics of information, and dynamical chaos.
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Affiliation(s)
- Selcuk Oguz Erbil
- Department of Mechanical Engineering, Bilkent University, 06800, Ankara, Turkey
| | - Utku Hatipoglu
- Department of Mechanical Engineering, Bilkent University, 06800, Ankara, Turkey
| | - Cenk Yanik
- Sabancı University SUNUM Nanotechnology Research Center, 34956, Istanbul, Turkey
| | - Mahyar Ghavami
- Department of Mechanical Engineering, Bilkent University, 06800, Ankara, Turkey
| | - Atakan B Ari
- Department of Mechanical Engineering, Bilkent University, 06800, Ankara, Turkey
| | - Mert Yuksel
- Department of Mechanical Engineering, Bilkent University, 06800, Ankara, Turkey
| | - M Selim Hanay
- Department of Mechanical Engineering, Bilkent University, 06800, Ankara, Turkey
- National Nanotechnology Research Center (UNAM), Bilkent University, 06800, Ankara, Turkey
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Guo W, Chen J, Liu L, Eltahan AS, Rosato N, Yu J, Wang D, Chen J, Bottini M, Liang XJ. Laser-Induced Transformable BiS@HSA/DTX Multiple Nanorods for Photoacoustic/Computed Tomography Dual-Modal Imaging Guided Photothermal/Chemo Combinatorial Anticancer Therapy. ACS Appl Mater Interfaces 2018; 10:41167-41177. [PMID: 30406646 DOI: 10.1021/acsami.8b16395] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Suboptimal intratumor accumulation and poorly controllable release of encapsulated drugs remain unresolved challenges hampering further advancement of nanomedicines in cancer therapy. Herein, we conceived near-infrared (NIR) laser-triggered transformable BiS@HSA/DTX multiple nanorods (mNRs), which were made of small bundles of bismuth sulfide nanorods (BiS NRs) coated with docetaxel (DTX)-inlaid human serum albumin (HSA). The BiS@HSA/DTX mNRs had a lateral size of approximately 100 nm and efficiently accumulated in the tumor microenvironment upon systemic administration in tumor-bearing nude mice. NIR laser irradiation of the tumor area caused rapid disassembly of the BiS@HSA/DTX mNRs into individual HSA-coated BiS nanorods (BiS@HSA iNRs) and triggered the release of DTX from the HSA corona, due to the local temperature increase generated by BiS NRs via the photothermal effect. The laser-induced transformation into BiS@HSA iNRs facilitated their penetration and increased the retention time in tumor. The spatiotemporal delivery behavior of the BiS@HSA/DTX mNRs could be monitored by photoacoustic/computed tomography dual-modal imaging in vivo. Furthermore, because of the excellent photothermal conversion properties of BiS NRs and laser-triggered DTX release from BiS@HSA/DTX mNRs, efficient tumor combinatorial therapy was achieved via concurrent hyperthermia and chemotherapy in mice treated with BiS@HSA/DTX mNRs upon NIR laser irradiation.
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Affiliation(s)
- Weisheng Guo
- Translational Medicine Center, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital , Guangzhou Medical University , Guangzhou 510260 , China
| | - Jing Chen
- School of Life Sciences , Tianjin University , Tianjin 300072 , China
| | - Lu Liu
- Laboratory of Controllable Nanopharmaceuticals, Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety , National Center for Nanoscience and Technology , Beijing 100190 , China
| | - Ahmed Shaker Eltahan
- Translational Medicine Center, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital , Guangzhou Medical University , Guangzhou 510260 , China
| | - Nicola Rosato
- Department of Experimental Medicine and Surgery , University of Rome Tor Vergata , Rome 00133 , Italy
| | - Jing Yu
- College of Materials Science and Engineering , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Dongliang Wang
- Laboratory of Controllable Nanopharmaceuticals, Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety , National Center for Nanoscience and Technology , Beijing 100190 , China
| | - Jingqi Chen
- Translational Medicine Center, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital , Guangzhou Medical University , Guangzhou 510260 , China
| | - Massimo Bottini
- Laboratory of Controllable Nanopharmaceuticals, Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety , National Center for Nanoscience and Technology , Beijing 100190 , China
- Department of Experimental Medicine and Surgery , University of Rome Tor Vergata , Rome 00133 , Italy
| | - Xing-Jie Liang
- Laboratory of Controllable Nanopharmaceuticals, Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety , National Center for Nanoscience and Technology , Beijing 100190 , China
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Shi HQ, Zhou XT, Xu XW, Liu NH. Tunable phonon blockade in quadratically coupled optomechanical systems. Sci Rep 2018; 8:2212. [PMID: 29396514 DOI: 10.1038/s41598-018-20568-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 01/18/2018] [Indexed: 12/02/2022] Open
Abstract
We theoretically investigate the phonon statistics of a quadratically coupled optomechanical system, in which an effective second-order nonlinear interaction between an optical mode and a mechanical mode is induced by a strong optical driving field on two-phonon red-sideband resonance. We show that strong phonon antibunching can be observed even if the strength of the effective second-order nonlinear interaction is much weaker than the decay rates of the system, by driving the optical and mechanical modes with weak driving fields respectively. Moreover, the phonon statistics can be dynamically controlled by tuning the strengths and the phase difference of the weak driving fields. The scheme proposed here can be used to realize tunable single-phonon sources with quadratically optomechanical coupling.
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Qi L, Xing Y, Wang HF, Zhu AD, Zhang S. Simulating Z 2 topological insulators via a one-dimensional cavity optomechanical cells array. Opt Express 2017; 25:17948-17959. [PMID: 28789283 DOI: 10.1364/oe.25.017948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 07/05/2017] [Indexed: 06/07/2023]
Abstract
We propose a novel scheme to simulate Z2 topological insulators via one-dimensional (1D) cavity optomechanical cells array. The direct mapping between 1D cavity optomechanical cells array and 2D quantum spin Hall (QSH) system can be achieved by using diagonalization and dimensional reduction methods. We show that the topological features of the present model can be captured using a 1D generalized Harper equation with an additional SU(2) guage structure. Interestingly, spin pumping of effective photon-phonon bosons can be naturally derived after scanning the additional periodic parameter, which means that we can realize the transition between different QSH edge states.
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