Stable vortex-soliton tori with multiple nested phase singularities in dissipative media

被引：17

作者：

Borovkova, Olga V. ^{[1
,2
]}

Lobanov, Valery E. ^{[1
,2
]}

Kartashov, Yaroslav V. ^{[1
,2
,3
]}

Torner, Lluis ^{[1
,2
]}

机构：

[1] ICFO Inst Ciencies Fotoniques, E-08860 Barcelona, Spain

[2] Univ Politecn Cataluna, E-08860 Barcelona, Spain

[3] Russian Acad Sci, Inst Spect, Troitsk 142190, Moscow Region, Russia

来源：

PHYSICAL REVIEW A | 2012年 / 85卷 / 02期

关键词：

RING SOLITONS;

D O I：

10.1103/PhysRevA.85.023814

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show the existence of stable two- and three-dimensional vortex solitons carrying multiple, spatially separated, single-charge topological dislocations nested in a common vortex-ring core. Such nonlinear states are supported by elliptical gain landscapes in focusing nonlinear media with two- photon absorption. The separation between the phase dislocations is dictated mostly by the geometry of the gain landscape, and it only slightly changes upon variation of the gain or absorption strength.

引用

页数：4

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