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Two-dimensional optical gap solitons and vortices in a coherent atomic ensemble loaded on optical lattices
Chen, Zhiming1,2,3; Zeng, Jianhua2
Department瞬态光学研究室
2021-11
Source PublicationCommunications in Nonlinear Science and Numerical Simulation
ISSN10075704
Volume102
Contribution Rank1
Abstract

Coherent atomic systems, e.g., resonantly cold atomic gases within which electromagnetically induced transparency (EIT) operates, have recently received great attention, because of their remarkable scientific properties and pivotal implications. Light behavior in such systems governed by various potentials is a new and interesting research focus, but missing literally report on two-dimensional (2D) localized gap modes in coherent atomic systems loaded on optical lattices. We survey such issue in a coherent atomic gas inside where the EIT turns on, trapped by 2D optical lattices—constituted by counter-propagating far-detuned Stark laser fields, in the framework of nonlinear Schrödinger equation derived from Maxwell-Bloch equations. Using the linear stability analysis and direct perturbed evolution we address the formation, property, and stability of 2D localized gap modes of two types, gap solitons and gap vortices, in forbidden band gaps of the underlying linear Bloch-wave spectrum. The former mode is fundamental gap solitons, and the latter belongs to higher-order gap solitons with embedded topological charge. Our results are helpful not only for in-depth understanding of soliton dynamics in coherent atomic ensemble loaded on periodic potentials, but also for laying the groundwork for forthcoming applications in optical communications and quantum information processing. © 2021 Elsevier B.V.

KeywordElectromagnetically induced transparency Kerr nonlinearity Optical lattices Optical gap solitons and vortices
DOI10.1016/j.cnsns.2021.105911
Indexed BySCI ; EI
Language英语
WOS IDWOS:000685172800006
PublisherElsevier B.V.
EI Accession Number20212510518780
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/94985
Collection瞬态光学研究室
Corresponding AuthorZeng, Jianhua
Affiliation1.State Key Laboratory of Nuclear Resources and Environment & School of Science, East China University of Technology, Nanchang; 330013, China;
2.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi'an; 710119, China;
3.Collaborative Innovation Center of Light Manipulations and Applications, Shandong Normal University, Jinan; 250358, China
Recommended Citation
GB/T 7714
Chen, Zhiming,Zeng, Jianhua. Two-dimensional optical gap solitons and vortices in a coherent atomic ensemble loaded on optical lattices[J]. Communications in Nonlinear Science and Numerical Simulation,2021,102.
APA Chen, Zhiming,&Zeng, Jianhua.(2021).Two-dimensional optical gap solitons and vortices in a coherent atomic ensemble loaded on optical lattices.Communications in Nonlinear Science and Numerical Simulation,102.
MLA Chen, Zhiming,et al."Two-dimensional optical gap solitons and vortices in a coherent atomic ensemble loaded on optical lattices".Communications in Nonlinear Science and Numerical Simulation 102(2021).
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