Quasi-stable fractional vortex solitons in nonlocal nonlinear media

Xinjian Pan; Chongfu Zhang; Chunjian Deng; Zhili Li; Qing Wang

Results in Physics (Aug 2021)

Quasi-stable fractional vortex solitons in nonlocal nonlinear media

Xinjian Pan,
Chongfu Zhang,
Chunjian Deng,
Zhili Li,
Qing Wang

Affiliations

Xinjian Pan: School of Electronic Information, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China; School of Information and Communication Engineering, Zhongshan Institute, University of Electronic Science and Technology of China, Chengdu 611731, China
Chongfu Zhang: School of Electronic Information, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China; School of Information and Communication Engineering, Zhongshan Institute, University of Electronic Science and Technology of China, Chengdu 611731, China
Chunjian Deng: School of Electronic Information, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China; School of Information and Communication Engineering, Zhongshan Institute, University of Electronic Science and Technology of China, Chengdu 611731, China
Zhili Li: School of Electronic Information, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China
Qing Wang: College of Science, JiuJiang University, Jiangxi 334000, China; Corresponding author.

Journal volume & issue: Vol. 27
p. 104511

Abstract

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This paper studied the propagations of fractional vortex beams in nonlocal nonlinear media, and found that quasi-stable solitons can form when the nonlocality is strong enough and the initial power is equal to the critical power. The propagation properties, including intensity patterns, phase structures, transverse energy flows, and rotation period, were all investigated. The critical power of solitons with different topological charges is the same, however, the orbital angular momentum (OAM) of that increases with the increase of fractional topological charge. In addition, we revealed that fractional vortex solitons have lateral shifts in the y-direction, and the shift values can be controlled by the fractional topological charge. Obviously, the quasi-stable fractional vortex solitons have important academic value and potential application to optical switches, optical wrenches and optical communications, etc.

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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