Dynamics of Airy beams in parity-time symmetric optical lattices

被引：2
|
作者：
Chen, Rui-Hong [1 ]
Hong, Wei-Yi [2 ]
机构：
[1] South China Normal Univ, Guangzhou Key Lab Special Fiber Photon Devices &, Guangzhou 510631, Guangdong, Peoples R China
[2] South China Normal Univ, Guangdong Prov Key Lab Nanophoton Funct Mat & Dev, Guangzhou 510631, Guangdong, Peoples R China
来源：
CHINESE PHYSICS B | 2019年 / 28卷 / 05期
关键词：
parity-time symmetry; Airy beam; nonlinear Schrodinger equation; optical lattices; REAL; GENERATION; SOLITONS;
D O I：
10.1088/1674-1056/28/5/054202
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate the dynamics of airy beams propagating in the parity-time (PT) symmetric optical lattices in linear and nonlinear regimes, respectively. For the linear propagation, the position of the channel guided by the PT lattice can be shifted by tuning the lattice frequency. The underlying physical mechanism of this phenomenon is also discussed. An interesting phenomenon is found in the nonlinear regime in that the airy beam becomes a tilt channel with several Rayleigh lengths. These findings create new opportunities for optical steering and manipulations.
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页数：5
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