Stable higher-charge vortex solitons in the cubic-quintic medium with a ring potential

被引：21

作者：

Dong, Liangwei ^{[1
]}

Fan, Mingjing ^{[2
]}

Malomed, Boris A. ^{[3
,4
]}

机构：

[1] Zhejiang Univ Sci & Technol, Dept Phys, Hangzhou 310023, Peoples R China

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

[3] Tel Aviv Univ, Fac Engn, Sch Elect Engn, Dept Phys Elect, IL-69978 Tel Aviv, Israel

[4] Univ Tarapaca, Inst Alta Invest, Casilla 7D, Arica, Chile

来源：

OPTICS LETTERS | 2023年 / 48卷 / 18期

基金：

以色列科学基金会;

关键词：

OPTICAL VORTICES;

D O I：

10.1364/OL.500054

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We put forward a model for trapping stable optical vortex solitons (VSs) with high topological charges m. The cubic-quintic nonlinear medium with an imprinted ring shaped modulation of the refractive index is shown to support two branches of VSs, which are controlled by the radius, width, and depth of the modulation profile. While the lower-branch VSs are unstable in their nearly whole existence domain, the upper branch is completely stable. Vortex solitons with m <= 12 obey the anti-Vakhitov-Kolokolov stability criterion. The results suggest possibilities for the creation of stable narrow optical VSs with a low power, carrying higher vorticities. (c) 2023 Optica Publishing Group

引用

页码：4817 / 4820

页数：4

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