Transverse Localization of Light in 1D Self-Focusing Parity-Time-Symmetric Optical Lattices  

作　　者：魏星 陈斌 王春芳 

机构地区：[1]Department of Physics,University of Shanghai for Science and Technology

出　　处：《Chinese Physics Letters》2016年第3期48-51,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 11104185,11174084,10934011 and 11504236;the National Basic Research Program of China under Grant No 2012CB921904;the Innovation Program of Shanghai Municipal Education Commission under Grant No 11YZ118;the Natural Science Foundation of Shanghai under Grant No 14ZR1414300

摘　　要：Transverse localization of light is investigated numerically in a serf-focusing Kerr medium with a complex-valued optical lattice featuring parity-time symmetry. It is demonstrated that the light localization exists below the threshold of the spatial frequency of the lattices, and is further enhanced with the decrease of the spatial frequency. The influence of defects on the transverse localization is also discussed in detail. The results show that both positive and negative defects in such a medium would enhance the localization.Transverse localization of light is investigated numerically in a serf-focusing Kerr medium with a complex-valued optical lattice featuring parity-time symmetry. It is demonstrated that the light localization exists below the threshold of the spatial frequency of the lattices, and is further enhanced with the decrease of the spatial frequency. The influence of defects on the transverse localization is also discussed in detail. The results show that both positive and negative defects in such a medium would enhance the localization.

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分 类 号：O734[理学—晶体学]