Spatiotemporal vortex solitons in hexagonal arrays of waveguides

被引：27

作者：

Leblond, Herve ^{[1
]}

Malomed, Boris A. ^{[2
,3
]}

Mihalache, Dumitru ^{[1
,4
,5
]}

机构：

[1] Univ Angers, Lab Photon Angers, EA 4464, F-49000 Angers, France

[2] Tel Aviv Univ, Dept Phys Elect, Sch Elect Engn, Fac Engn, IS-69978 Tel Aviv, Israel

[3] ICFO Inst Ciencies Foton, E-08860 Castelldefels, Barcelona, Spain

[4] Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH, R-077125 Magurele, Romania

[5] Acad Romanian Scientists, R Bucharest 050094, Romania

来源：

PHYSICAL REVIEW A | 2011年 / 83卷 / 06期

关键词：

DISCRETE LIGHT BULLETS; MULTIDIMENSIONAL SOLITONS; MODULATIONAL INSTABILITY; SURFACE SOLITONS; LOCALIZATION; BREATHERS; VORTICES; COLLAPSE;

D O I：

10.1103/PhysRevA.83.063825

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

By means of a systematic numerical analysis, we demonstrate that hexagonal lattices of parallel linearly coupled waveguides, with the intrinsic cubic self-focusing nonlinearity, give rise to three species of stable semidiscrete complexes (which are continuous in the longitudinal direction) with embedded vorticity S: triangular modes with S = 1, hexagonal ones with S = 2, both centered around an empty central core, and compact triangles with S = 1, which do not not include the empty site. Collisions between stable triangular vortices are studied too. These waveguiding lattices can be realized in optics and Bose-Einstein condensate.

引用

页数：9

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