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Yessenov M, Faryadras S, Benis S, Hagan DJ, Van Stryland EW, Abouraddy AF. Refraction of space-time wave packets in a dispersive medium. Opt Lett 2022; 47:1630-1633. [PMID: 35363695 DOI: 10.1364/ol.450828] [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: 12/08/2021] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Space-time (ST) wave packets are a class of pulsed optical beams whose spatiotemporal spectral structure results in propagation invariance, tunable group velocity, and anomalous refractive phenomena. Here, we investigate the refraction of ST wave packets normally incident onto a planar interface between two dispersive, homogeneous, isotropic media. We formulate a new, to the best of our knowledge, refractive invariant for ST wave packets in this configuration, from which we obtain a law of refraction that determines the change in their group velocity across the interface. We verify this new refraction law in ZnSe and CdSe, both of which manifest large chromatic dispersion at near-infrared frequencies in the vicinity of their band edges. ST wave packets can thus be utilized in nonlinear optics for bridging large group-velocity mismatches in highly dispersive scenarios.
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Goubau J, Benis S, Ruttkay T, Cognet JM, Garret J, Levadoux M, Cromheecke M, De Keyzer PB, Obert L. Traumatic lesions at the thumb base: treatment options. Hand Surgery and Rehabilitation 2022; 41:281-295. [DOI: 10.1016/j.hansur.2022.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/25/2022] [Accepted: 01/28/2022] [Indexed: 10/19/2022]
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Allen TG, Benis S, Munera N, Zhang J, Dai S, Li T, Jia B, Wang W, Barlow S, Hagan DJ, Van Stryland EW, Zhan X, Perry JW, Marder SR. Highly Conjugated, Fused-Ring, Quadrupolar Organic Chromophores with Large Two-Photon Absorption Cross-Sections in the Near-Infrared. J Phys Chem A 2020; 124:4367-4378. [DOI: 10.1021/acs.jpca.0c02572] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Taylor G. Allen
- School of Chemistry and Biochemistry, Center for Organic Photonics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Sepehr Benis
- CREOL, The College of Optics & Photonics, University of Central Florida, Orlando, Florida 32816-2700, United States
| | - Natalia Munera
- CREOL, The College of Optics & Photonics, University of Central Florida, Orlando, Florida 32816-2700, United States
| | - Junxiang Zhang
- School of Chemistry and Biochemistry, Center for Organic Photonics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Shuixing Dai
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, People′s Republic of China
| | - Tengfei Li
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, People′s Republic of China
| | - Boyu Jia
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, People′s Republic of China
| | - Wei Wang
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, People′s Republic of China
| | - Stephen Barlow
- School of Chemistry and Biochemistry, Center for Organic Photonics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - David J. Hagan
- CREOL, The College of Optics & Photonics, University of Central Florida, Orlando, Florida 32816-2700, United States
| | - Eric W. Van Stryland
- CREOL, The College of Optics & Photonics, University of Central Florida, Orlando, Florida 32816-2700, United States
| | - Xiaowei Zhan
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, People′s Republic of China
| | - Joseph W. Perry
- School of Chemistry and Biochemistry, Center for Organic Photonics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Seth R. Marder
- School of Chemistry and Biochemistry, Center for Organic Photonics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
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Ensley TR, Benis S, Hu H, Li Z, Jang SH, Jen AKY, Perry JW, Hales JM, Hagan DJ, Van Stryland EW. Nonlinear refraction and absorption measurements of thin films by the dual-arm Z-scan method. Appl Opt 2019; 58:D28-D33. [PMID: 31044817 DOI: 10.1364/ao.58.000d28] [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: 12/17/2018] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
We extend the recently developed dual-arm Z-scan to increase the signal-to-noise ratio (SNR) for measuring the nonlinear refraction (NLR) of thin films on thick substrates. Similar to the case of solutes in solution, the phase shift due to NLR in a thin film can often be dominated by the phase shift due to NLR in the much thicker substrate. SNR enhancement is accomplished by simultaneously scanning a bare substrate and the film plus substrate in two separate but identical Z-scan arms. The subtraction of these signals taken simultaneously effectively cancels the nonlinear signal from the substrate, leaving only the signal from the film. More importantly, the SNR is increased since the correlated noise from effects such as beam-pointing instabilities cancels. To show the versatility of the dual-arm Z-scan method, we perform measurements on semiconductor and organic thin films, some less than 100 nm thick and with thicknesses up to 4 orders of magnitude less than the substrate.
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Eftekhar MA, Sanjabi-Eznaveh Z, Lopez-Aviles HE, Benis S, Antonio-Lopez JE, Kolesik M, Wise F, Amezcua-Correa R, Christodoulides DN. Accelerated nonlinear interactions in graded-index multimode fibers. Nat Commun 2019; 10:1638. [PMID: 30967553 PMCID: PMC6456603 DOI: 10.1038/s41467-019-09687-9] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [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: 04/22/2018] [Accepted: 03/15/2019] [Indexed: 11/29/2022] Open
Abstract
Multimode optical fibers have recently reemerged as a viable platform for addressing a number of long-standing issues associated with information bandwidth requirements and power-handling capabilities. As shown in recent studies, the complex nature of such heavily multimoded systems can be effectively exploited to observe altogether novel physical effects arising from spatiotemporal and intermodal linear and nonlinear processes. Here, we study for the first time, accelerated nonlinear intermodal interactions in core-diameter decreasing multimode fibers. We demonstrate that in the anomalous dispersion region, this spatiotemporal acceleration can lead to relatively blue-shifted multimode solitons and blue-drifting dispersive wave combs, while in the normal domain, to a notably flat and uniform supercontinuum, extending over 2.5 octaves. Our results pave the way towards a deeper understanding of the physics and complexity of nonlinear, heavily multimoded optical systems, and could lead to highly tunable optical sources with very high spectral densities. Multimode optical fibers can be used to observe complex intermodal processes like optical solitons. Here, Eftekhar et al. study accelerated nonlinear interaction in multimode fibers with a tapered core diameter and its effect on the temporal and spectral behavior of the multimode solitons.
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Affiliation(s)
- M A Eftekhar
- CREOL, College of Optics and Photonics, University of Central Florida, Orlando, FL, 32816-2700, USA
| | - Z Sanjabi-Eznaveh
- CREOL, College of Optics and Photonics, University of Central Florida, Orlando, FL, 32816-2700, USA
| | - H E Lopez-Aviles
- CREOL, College of Optics and Photonics, University of Central Florida, Orlando, FL, 32816-2700, USA
| | - S Benis
- CREOL, College of Optics and Photonics, University of Central Florida, Orlando, FL, 32816-2700, USA
| | - J E Antonio-Lopez
- CREOL, College of Optics and Photonics, University of Central Florida, Orlando, FL, 32816-2700, USA
| | - M Kolesik
- The College of Optical Sciences, The University of Arizona, Tucson, AZ, 85721, USA
| | - F Wise
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY, 14853, USA
| | - R Amezcua-Correa
- CREOL, College of Optics and Photonics, University of Central Florida, Orlando, FL, 32816-2700, USA
| | - D N Christodoulides
- CREOL, College of Optics and Photonics, University of Central Florida, Orlando, FL, 32816-2700, USA.
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Davydenko I, Barlow S, Sharma R, Benis S, Simon J, Allen TG, Cooper MW, Khrustalev V, Jucov EV, Castañeda R, Ordonez C, Li Z, Chi SH, Jang SH, Parker TC, Timofeeva TV, Perry JW, Jen AKY, Hagan DJ, Van Stryland EW, Marder SR. Facile Incorporation of Pd(PPh3)2Hal Substituents into Polymethines, Merocyanines, and Perylene Diimides as a Means of Suppressing Intermolecular Interactions. J Am Chem Soc 2016; 138:10112-5. [DOI: 10.1021/jacs.6b06361] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Iryna Davydenko
- School
of Chemistry and Biochemistry and Center for Organic Photonics and
Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Stephen Barlow
- School
of Chemistry and Biochemistry and Center for Organic Photonics and
Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Rajesh Sharma
- CREOL,
The College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, United States
| | - Sepehr Benis
- CREOL,
The College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, United States
| | - Janos Simon
- School
of Chemistry and Biochemistry and Center for Organic Photonics and
Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Taylor G. Allen
- School
of Chemistry and Biochemistry and Center for Organic Photonics and
Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Matthew W. Cooper
- School
of Chemistry and Biochemistry and Center for Organic Photonics and
Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Victor Khrustalev
- Department
of Chemistry, New Mexico Highlands University, Las Vegas, New Mexico 87701, United States
- Department
of Inorganic Chemistry, Peoples’ Friendship University of Russia, Moscow 117198, Russia
| | - Evgheni V. Jucov
- Department
of Chemistry, New Mexico Highlands University, Las Vegas, New Mexico 87701, United States
| | - Raúl Castañeda
- Department
of Chemistry, New Mexico Highlands University, Las Vegas, New Mexico 87701, United States
| | - Carlos Ordonez
- Department
of Chemistry, New Mexico Highlands University, Las Vegas, New Mexico 87701, United States
| | - Zhong’an Li
- Department
of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
| | - San-Hui Chi
- School
of Chemistry and Biochemistry and Center for Organic Photonics and
Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Sei-Hum Jang
- Department
of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Timothy C. Parker
- School
of Chemistry and Biochemistry and Center for Organic Photonics and
Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Tatiana V. Timofeeva
- Department
of Chemistry, New Mexico Highlands University, Las Vegas, New Mexico 87701, United States
| | - Joseph W. Perry
- School
of Chemistry and Biochemistry and Center for Organic Photonics and
Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Alex K.-Y. Jen
- Department
of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
| | - David J. Hagan
- CREOL,
The College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, United States
| | - Eric W. Van Stryland
- CREOL,
The College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, United States
| | - Seth R. Marder
- School
of Chemistry and Biochemistry and Center for Organic Photonics and
Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
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Mandl P, Filippucci E, Benis S, Baksa G, Patonay L, Balint P, Grassi W. AB1291 Intraarticular power doppler signal at MCP joint and its assessment in early rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Goubau J, Benis S, Van Hoonacker P, Berghs B, Kerckhove D, Patonay L. Vascularization of the trapeziometacarpal joint and its clinical importance: Anatomical study. ACTA ACUST UNITED AC 2012; 31:57-61. [DOI: 10.1016/j.main.2012.02.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2011] [Revised: 01/31/2012] [Accepted: 02/08/2012] [Indexed: 10/28/2022]
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