Dissipative gap solitons and vortices in moiré optical lattices

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外文标题：Dissipative gap solitons and vortices in moiré optical lattices

外文摘要：Considerable attention has been recently paid to elucidation the linear,nonlinear and quantum physics of moiré patterns because of the innate extraordinary physical properties and potential applications.Particularly,moiré superlattices consisted of two periodic structures with a twist angle offer a new platform for studying soliton theory and its practical ap-plications in various physical systems including optics,while such studies were so far limited to reversible or conservative nonlinear systems.Herein,we provide insight into soliton physics in dissipative physical settings with moiré optical lattices,using numerical simulations and theoretical analysis.We reveal linear localization-delocalization transitions,and find that such nonlinear settings support plentiful localized gap modes representing as dissipative gap solitons and vortices in periodic and aperiodic moiré optical lattices,and identify numerically the stable regions of these localized modes.Our predicted dissipative localized modes provide insightful understanding of soliton physics in dissipative nonlinear systems since dissipation is every-where.

外文关键词：

moiré optical latticesdissipative gap solitons and vorticeslocalization-delocalization transitiondissipation and gainself-defocusing nonlinearity

作者：

Li Wang、Zhenya Yan、Yi Zhu、Jianhua Zeng

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作者单位：

Center for Attosecond Science and Technology,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

Yau Mathematical Sciences Center and Department of Mathematics,Tsinghua University,Beijing 100084,China

Beijing Institute of Mathematical Sciences and Applications,Beijing 101408,China

Key Lab of Mathematics Mechanization,Academy of Mathematics and Systems Science,Chinese Academy of Sciences,Beijing 100190,China

School of Mathematical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China

School of Optoelectronics,University of Chinese Academy of Sciences,Beijing 100049,China

Collaborative lnnovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China

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关键词：

moiré optical lattices dissipative gap solitons and vortices localization-delocalization transition dissipation and gain self-defocusing nonlinearity

出版年：

2024

DOI：

10.1360/nso/20240011

国家科学进展(英文)

ISSN：

年,卷(期)：2024.3(6)