Stabilization of vortex solitons by combining competing cubic-quintic nonlinearities with a finite degree of nonlocality

被引：44

作者：

Shen, Ming ^{[1
]}

Zhao, Hongwei ^{[1
]}

Li, Bailing ^{[1
]}

Shi, Jielong ^{[1
]}

Wang, Qi ^{[1
]}

Lee, Ray-Kuang ^{[2
]}

机构：

[1] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China

[2] Natl Tsing Hua Univ, Inst Photon Technol, Hsinchu 300, Taiwan

来源：

PHYSICAL REVIEW A | 2014年 / 89卷 / 02期

关键词：

OPTICAL SOLITONS; LIQUID-CRYSTALS; MEDIA; AZIMUTHONS;

D O I：

10.1103/PhysRevA.89.025804

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In contrast to an infinite degree of nonlocality, we demonstrate that vortex solitons in nonlinear media under competing self-focusing cubic and self-defocusing quintic nonlocal nonlinearities can be stabilized with a finite degree of nonlocality. Stable vortex solitons in the upper branch, bifurcated from the competing cubic-quintic nonlinearities, are found to be supported when the original double-ring refractive index change is transferred into a single-ring configuration due to the balance between diffusive nonlocality and defocusing quintic nonlinearity. The dynamics and stabilities of the vortex solitons are studied analytically and numerically.

引用

页数：4

共 40 条

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