Stable higher-charge discrete vortices in hexagonal optical lattices

Kody J.H. Law; P. G. Kevrekidis; Tristram J. Alexander; Wieslaw Królikowski; Yuri S. Kivshar

doi:10.1103/PhysRevA.79.025801

Stable higher-charge discrete vortices in hexagonal optical lattices

Kody J.H. Law
, P. G. Kevrekidis
, Tristram J. Alexander
, Wieslaw Królikowski
, Yuri S. Kivshar

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

We show that double-charge discrete optical vortices may be completely stable in hexagonal photonic lattices where single-charge vortices always exhibit dynamical instabilities. Even when unstable the double-charge vortices typically have a much weaker instability than the single-charge vortices, and thus their breakup occurs at longer propagation distances.

Original language	English
Article number	025801
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	79
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.79.025801
Publication status	Published - 2 Feb 2009

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10.1103/PhysRevA.79.025801

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title = "Stable higher-charge discrete vortices in hexagonal optical lattices",

abstract = "We show that double-charge discrete optical vortices may be completely stable in hexagonal photonic lattices where single-charge vortices always exhibit dynamical instabilities. Even when unstable the double-charge vortices typically have a much weaker instability than the single-charge vortices, and thus their breakup occurs at longer propagation distances.",

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AU - Law, Kody J.H.

AU - Kevrekidis, P. G.

AU - Alexander, Tristram J.

AU - Królikowski, Wieslaw

AU - Kivshar, Yuri S.

PY - 2009/2/2

Y1 - 2009/2/2

N2 - We show that double-charge discrete optical vortices may be completely stable in hexagonal photonic lattices where single-charge vortices always exhibit dynamical instabilities. Even when unstable the double-charge vortices typically have a much weaker instability than the single-charge vortices, and thus their breakup occurs at longer propagation distances.

AB - We show that double-charge discrete optical vortices may be completely stable in hexagonal photonic lattices where single-charge vortices always exhibit dynamical instabilities. Even when unstable the double-charge vortices typically have a much weaker instability than the single-charge vortices, and thus their breakup occurs at longer propagation distances.

UR - https://www.scopus.com/pages/publications/60349120093

U2 - 10.1103/PhysRevA.79.025801

DO - 10.1103/PhysRevA.79.025801

M3 - Article

SN - 1050-2947

VL - 79

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 2

M1 - 025801

ER -

Stable higher-charge discrete vortices in hexagonal optical lattices

Abstract

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