Light gap bullets in defocusing media with optical lattices
文献类型:期刊论文
作者 | Chen, Zhiming2,3; Wu, Zexing2; Zeng, Jianhua1,3 |
刊名 | CHAOS SOLITONS & FRACTALS |
出版日期 | 2023-09 |
卷号 | 174 |
ISSN号 | 0960-0779;1873-2887 |
关键词 | Spatiotemporal solitons Light gap bullets and vortices Electromagnetically induced transparency Optical lattices Kerr nonlinearity Coherent atomic system |
DOI | 10.1016/j.chaos.2023.113785 |
产权排序 | 1 |
英文摘要 | Searching for three-dimensional spatiotemporal solitons (also known as light/optical bullets) has recently attracted keen theoretical and experimental interests in nonlinear physics. Currently, optical lattices of diverse kinds have been introduced to the stabilization of light bullets, while the investigation for the light bullets of gap type - nonlinear localized modes within the finite gap of the underlying linear Bloch spectrum - is lacking. Herein, we address the formation and stabilization properties of such light gap bullets in periodic media with defocusing nonlinearity, theoretically and in numerical ways. The periodic media are based on two-dimensional periodic standing waves created in a coherent three-level atomic system which is driven to the regime of electromagnetically induced transparency, which in principle can also be replaced by photonic crystals in optics or optical lattices in ground-state ultracold atoms system. The temporal dispersion term is tuned to normal (positive) group velocity dispersion so that to launch the light gap bullets under self-repulsive nonlinearity; two types of such light gap bullets constructed as three-dimensional gap solitons and vortices with topological charge m = 1 within the first finite gap are reported and found to be robustly stable in the existence domains. On account of the light bullets were previously limited to the semi-infinite gap of periodic media and continuous nonlinear physical systems, the light gap bullets reported here thus supplement the missing type of three-dimensional spatiotemporal localized modes in periodic media which exhibit finite band gaps. |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:001113622400001 |
源URL | [http://ir.opt.ac.cn/handle/181661/97043] |
专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 |
通讯作者 | Zeng, Jianhua |
作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.East China Univ Technol, Sch Sci, Nanchang 330013, Peoples R China 3.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Zhiming,Wu, Zexing,Zeng, Jianhua. Light gap bullets in defocusing media with optical lattices[J]. CHAOS SOLITONS & FRACTALS,2023,174. |
APA | Chen, Zhiming,Wu, Zexing,&Zeng, Jianhua.(2023).Light gap bullets in defocusing media with optical lattices.CHAOS SOLITONS & FRACTALS,174. |
MLA | Chen, Zhiming,et al."Light gap bullets in defocusing media with optical lattices".CHAOS SOLITONS & FRACTALS 174(2023). |
入库方式: OAI收割
来源:西安光学精密机械研究所
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