Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Ju Won Choi"'
Autor:
Byoung-Uk Sohn, Yue-Xin Huang, Ju Won Choi, George F. R. Chen, Doris K. T. Ng, Shengyuan A. Yang, Dawn T. H. Tan
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Here the authors report the development of a topological nonlinear parametric amplification in a dimerized, Su-Schrieffer-Heeger waveguide. Kerr-induced chiral symmetry breaking is demonstrated, showcasing how nonlinearities may control transitions o
Externí odkaz:
https://doaj.org/article/c17a9bc74b134712a5cb8c1f0d7b3a77
Autor:
Ju Won Choi, Ezgi Sahin, Byoung-Uk Sohn, George F. R. Chen, Doris K. T. Ng, Anuradha M. Agarwal, Lionel C. Kimerling, Dawn T. H. Tan
Publikováno v:
Light: Science & Applications, Vol 10, Iss 1, Pp 1-15 (2021)
Abstract Optical pulses are fundamentally defined by their temporal and spectral properties. The ability to control pulse properties allows practitioners to efficiently leverage them for advanced metrology, high speed optical communications and attos
Externí odkaz:
https://doaj.org/article/2e93495bbf254dd79fbe3ec06558dbfd
Publikováno v:
APL Photonics, Vol 4, Iss 11, Pp 110804-110804-7 (2019)
The formation of optical solitons arises from the simultaneous presence of dispersive and nonlinear properties within a propagation medium. Chip-scale devices that support optical solitons harness high field confinement and flexibility in dispersion
Externí odkaz:
https://doaj.org/article/93217a5709174ca895e1ecd467af7530
Autor:
Byoung-Uk Sohn, Myungkoo Kang, Ju Won Choi, Anuradha M. Agarwal, Kathleen Richardson, Dawn T. H. Tan
Publikováno v:
APL Photonics, Vol 4, Iss 3, Pp 036102-036102-9 (2019)
We report high order multi-photon absorption in Ge23Sb7S70 chalcogenide glasses up to the 11th order. Open aperture z-scan measurements with enhanced detection capabilities are performed at short-wave to mid-infrared wavelengths between 1.1 μm and 5
Externí odkaz:
https://doaj.org/article/764880cf816c4dddb25a8c5d9ecfcb4d
Publikováno v:
Journal of Lightwave Technology. 41:3115-3130
Autor:
Ju Won Choi, Byoung-Uk Sohn, Ezgi Sahin, George F. R. Chen, Peng Xing, Doris K. T. Ng, Benjamin J. Eggleton, Dawn T. H. Tan
Publikováno v:
Nanophotonics. 12:1421-1433
Nonlinear propagation in periodic media has been studied for decades, yielding demonstrations of numerous phenomena including strong temporal compression and slow light generation. Gap solitons, that propagate at frequencies inside the stopband, have
Publikováno v:
Journal of the Korean Ophthalmological Society. 63:561-565
Purpose: To report a case of orbital apex syndrome and central retinal vein occlusion after blow-out fracture repair.Case summary: A 22-year-old man who underwent emergency re-operation in a department of plastic surgery due to pain, decreased visual
Autor:
Ju Won Choi, Byoung-Uk Sohn, Ezgi Sahin, George F. R. Chen, Doris K. T. Ng, Benjamin J. Eggleton, Carel Martijn de Sterke, Dawn T. H. Tan
Publikováno v:
Nanophotonics. 11:2319-2328
The generation of optical pulse trains from continuous-wave light has attracted growing attention in recent years because it provides a simple way to obtain high repetition rate ultrashort pulses. While pulse generation has been extensively demonstra
Autor:
Sang-Won Kim, Ju-Won Choi, Jeon-Mo Kim, Hun-Young Yoon, Kieun Bae, Kyong-Ah Yoon, Jung-Hyun Kim
Publikováno v:
Frontiers in Veterinary Science. 9
An 11-year-old intact female mixed breed dog was presented with abdominal distention and elevated hepatic enzyme levels. Computed tomography revealed a multicystic hepatic mass at the left medial lobe adjacent to the diaphragm and caudal vena cava. T
Autor:
Byoung-Uk Sohn, Dawn T. H. Tan, Ezgi Sahin, Doris K. T. Ng, George F. R. Chen, Benjamin J. Eggleton, Peng Xing, Ju Won Choi
Publikováno v:
Nanophotonics, Vol 10, Iss 13, Pp 3507-3518 (2021)
We demonstrate a complementary metal–oxide–semiconductor (CMOS)-compatible optical parametric Bragg amplifier on an ultra-silicon-rich nitride chip. The amplifier design incorporates advantageous group index properties in a nonlinear Bragg gratin