Fundamental and vortex gap solitons in quasiperiodic photonic lattices

被引：12

作者：

Huang, Changming ^{[1
]}

Dong, Liangwei ^{[2
]}

Deng, Hanying ^{[3
]}

Zhang, Xiao ^{[4
]}

Gao, Penghui ^{[1
]}

机构：

[1] Changzhi Univ, Dept Phy, Lab Opt Field Manipulat, Changzhi 046011, Shanxi, Peoples R China

[2] Shaanxi Univ Sci & Technol, Dept Phys, Xian 710021, Peoples R China

[3] Guangdong Polytech Normal Univ, Sch Photoelect Engn, Guangzhou 510665, Peoples R China

[4] Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Zhejiang, Peoples R China

来源：

OPTICS LETTERS | 2021年 / 46卷 / 22期

基金：

中国国家自然科学基金;

关键词：

LOCALIZATION; LIGHT; DELOCALIZATION; TRANSITION;

D O I：

10.1364/OL.443051

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We address the existence and stability of fundamental, single-charged vortex, and double-charged vortex gap solitons in two-dimensional quasiperiodic photonic lattices imprinted in a Kerr-type medium. Fundamental and vortex gap solitons can bifurcate from linear localized states or their combination supported by quasiperiodic lattices for both defocusing and focusing nonlinearities. We find that the three types of solitons mentioned above are stable in the entire existence domain for defocusing nonlinearities, and that they can also be stable at a lower power level for focusing nonlinearities. At higher power, unstable solitons are characterized by a ring-shaped symmetry-breaking distribution, and the unique spot profile formed is repeatedly observed with changes in propagation distance. (C) 2021 Optical Society of America.

引用

页码：5691 / 5694

页数：4

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