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Dissipative gap solitons and vortices in moiré optical lattices: 《National Science Open》2024年第6期139-151,共13页Li Wang Zhenya Yan Yi Zhu Jianhua Zeng; supported by the National Natural Science Foundation of China(NSFC)(12074423,11925108,12301306);the Young Scholar of Chinese Academy of Sciences in western China(XAB2021YN18);the Provisional Science Fund for Distinguished Young Scholars of Shaanxi(2024JC-JCQN-11);the Beijing Natural Science Foundation(1234039).; Considerable attention has been recently paid to elucidation the linear,nonlinear and quantum physics of moire patterns because of the innate extraordinary physical properties and potential applications.Particularly,m...; 关键词：moire optical lattices dissipative gap solitons and vortices localization-delocalization transition dissipation and gain self-defocusing nonlinearity

Image encryption using spatial nonlinear optics被引量：11: 《eLight》2022年第1期32-41,共10页Junfeng Hou Guohai Situ; National Natural Science Foundation of China(61991452,62061136005);Sino-German Center(GZ1391).; Optical technologies have been widely used in information security owing to its parallel and high-speed processing capability.However,the most critical problem with current optical encryption techniques is that the cy...; 关键词：Optical encryption Spatial nonlinear optics SELF-DEFOCUSING

Gap-type dark localized modes in a Bose-Einstein condensate with optical lattices被引量：7: 《Advanced Photonics》2019年第4期32-41,共10页Liangwei Zeng Jianhua Zeng; This work was supported,in part,by the National Natural Science Foundation of China(Project Nos.61690224 and 61690222);the Youth Innovation Promotion Association of the Chinese Academy of Sciences(Project No.2016357).; Bose-Einstein condensate(BEC)exhibits a variety of fascinating and unexpected macroscopic phenomena,and has attracted sustained attention in recent years-particularly in the field of solitons and associated nonlinear ...; 关键词：Bose–Einstein condensates optical lattices photonic crystals and lattices self-defocusing Kerr nonlinearity dark gap solitons and soliton clusters

Electro-optically tunable self-focusing and self-defocusing in KTP crystals by a cascaded second-order process: 《Chinese Optics Letters》2016年第12期103-107,共5页Ruma Debnath Digvijay Singh Hada Susheel Kumar Beda Ardhendu Saha; We report the transformation of a linear electro-optically tunable non-phase-matched second-order nonlinear process into a cascaded second-order nonlinear process in a bulk KTP crystal to generate the effect of electr...; 关键词：tunable cascaded optically focusing wavefront applying nonlinearity created harmonic matching

Third-order Optical Nonlinearities of a Series of Compounds Derived from a Keplerate Type Molybdenum-oxide-based Polyoxometalate: 《Chemical Research in Chinese Universities》2014年第5期715-719,共5页ZHOU Yunshan QU Ningning WANG Xuan ZHANG Lijuan SHI Zonghai HASSAN ul Sadaf; Supported by the National Natural Science Foundation of China（Nos.20541001, 20771012, 21371020） and the Program for Changjiang Scholars and Innovative Research Team in Universities of China（No.IRYl205）.; Abstract By reacting the unique Keplerate type molybdenum-oxide based polyoxometalate （NH4）42·[MoI320372·（CH3COO）30（H2O）y2]·ca.300H2·ca. 10CH3COONH4（1） with tetramethylammonium bromide, a new derivative （...; 关键词：Keplerate type polyoxometalate Nonlinear optical property Z-Scan technique SELF-DEFOCUSING Reversesaturable absorption

Optical switch phenomenon in a self-defocusing medium: 《Chinese Optics Letters》2009年第5期421-423,共3页李华刚罗质华; A spatial optical switch phenomenon caused by the induced focusing of a weak probe beam occurring in self-defoeusing nonlinear media is discussed theoretically. A weak beam is induced to focus when it copropagates wit...; 关键词：Probes

Formation of Hot Images in Laser Beams through a Self-defocusing Kerr Medium Slab被引量：1: 《Chinese Physics Letters》2009年第2期130-133,共4页王友文邓剑钦陈列尊文双春游开明; Supported by the National Natural Science Foundation of China under Grant Nos 10576012 and 60538010, and the National High Technology Research and Development Programme for Inertial Confinement Fusion of China under Grant No 2008AA8041705, and the Scientific Research Fund of Hunan Provincial Education Department under Grant No 08C176.; A nonlinear hot image is usually thought as of a special case of self-focusing, and thus occurs when a laser beam propagates through a slab of self-focusing medium. Here we show theoretically that a hot image may also...; 关键词：field emission molybdenum dioxide enhancement factor

Solitary Wave Evolution of Optical Planar Vortices in Self-Defocusing Photorefractive Media被引量：2: 《Chinese Physics Letters》2008年第9期3280-3283,共4页甘雪涛张鹏刘圣肖发俊赵建林; Solitary wave evolution of optical planar vortices in isotropie self-defoeusing photorefractive media is investigated in detail. We demonstrate that the formation of a planar vortex soliton intensively depends on the ...; 关键词：the power-law exponents precipitation durative abrupt precipitation change

White-Light Nonlinear Photonic Lattices in Self-Defocusing Media被引量：3: 《Chinese Physics Letters》2007年第6期1596-1599,共4页高垣梅刘思敏; Supported by the National Natural Science Foundation of China under Grant Nos 60378013, 10474047, and 60278006.; Using fully incoherent white light emitted from an incandescent lamp and amplitude mask, we experimentally investigate the influence of several factors on the fabrication of the lattice in photovoltaic self-defocusing...; 关键词：PHOTOREFRACTIVE WAVE-GUIDES SOLITONS ARRAY

Theoretical Analysis on Self-Defocusing Mode-Locking in a Ring Resonator: 《Chinese Physics Letters》1994年第2期79-82,共4页ZANG Weiping TIAN Jianguo ZHANG Guangyin; A theoretical analysis of passive mode-locking in a thermal-stable ring cavity containing a Kerr medium and an aperture is presented.The analysis employing the beam propagation theory shows that the power dependence o...; 关键词：passive CAVITY ABSORBER

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