Vortex Solitons in Quasi-Phase-Matched Photonic Crystals

Feiyan Zhao; Xiaoxi Xu; Hexiang He; Li Zhang; Yangui Zhou; Zhaopin Chen; Boris A. Malomed; Yongyao Li

doi:10.1103/PhysRevLett.130.157203

Vortex Solitons in Quasi-Phase-Matched Photonic Crystals

Feiyan Zhao
, Xiaoxi Xu
, Hexiang He
, Li Zhang
, Yangui Zhou
, Zhaopin Chen
, Boris A. Malomed
, Yongyao Li

School of Electrical Engineering

Foshan University
Technion-Israel Institute of Technology
Universidad de Tarapacá

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

57 Scopus citations

Abstract

We report solutions for stable compound solitons in a three-dimensional quasi-phase-matched photonic crystal with the quadratic (χ(2)) nonlinearity. The photonic crystal is introduced with a checkerboard structure, which can be realized by means of the available technology. The solitons are built as four-peak vortex modes of two types, rhombuses and squares (intersite- and onsite-centered self-trapped states, respectively). Their stability areas are identified in the system's parametric space (rhombuses occupy an essentially broader stability domain), while all bright vortex solitons are subject to strong azimuthal instability in uniform χ(2) media. Possibilities for experimental realization of the solitons are outlined.

Original language	English
Article number	157203
Journal	Physical Review Letters
Volume	130
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.130.157203
State	Published - 14 Apr 2023

Funding

Funders	Funder number
Graduate Innovative Talents Training Program of the Foshan University
Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology	2020B1212030010
Key Research Projects of General Colleges in Guangdong Province	2019KZDXM001
National Natural Science Foundation of China	12274077, 11874112, 62005044, 11905032
Israel Science Foundation	1695/22
Basic and Applied Basic Research Foundation of Guangdong Province	2021A1515111015

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10.1103/PhysRevLett.130.157203

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title = "Vortex Solitons in Quasi-Phase-Matched Photonic Crystals",

abstract = "We report solutions for stable compound solitons in a three-dimensional quasi-phase-matched photonic crystal with the quadratic (χ(2)) nonlinearity. The photonic crystal is introduced with a checkerboard structure, which can be realized by means of the available technology. The solitons are built as four-peak vortex modes of two types, rhombuses and squares (intersite- and onsite-centered self-trapped states, respectively). Their stability areas are identified in the system's parametric space (rhombuses occupy an essentially broader stability domain), while all bright vortex solitons are subject to strong azimuthal instability in uniform χ(2) media. Possibilities for experimental realization of the solitons are outlined.",

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AU - Chen, Zhaopin

AU - Malomed, Boris A.

AU - Li, Yongyao

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AB - We report solutions for stable compound solitons in a three-dimensional quasi-phase-matched photonic crystal with the quadratic (χ(2)) nonlinearity. The photonic crystal is introduced with a checkerboard structure, which can be realized by means of the available technology. The solitons are built as four-peak vortex modes of two types, rhombuses and squares (intersite- and onsite-centered self-trapped states, respectively). Their stability areas are identified in the system's parametric space (rhombuses occupy an essentially broader stability domain), while all bright vortex solitons are subject to strong azimuthal instability in uniform χ(2) media. Possibilities for experimental realization of the solitons are outlined.

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Vortex Solitons in Quasi-Phase-Matched Photonic Crystals

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