Electromagnetically induced moire optical lattices in a coherent atomic gas
Chen, Zhiming2,3,4; Liu, Xiuye2,3,4; Zeng, Jianhua1,4
刊名FRONTIERS OF PHYSICS
2022-08
卷号17期号:4
关键词electromagnetically induced transparency moire optical lattices extremely flat bands light propagation coherent atomic gas
ISSN号2095-0462;2095-0470
DOI10.1007/s11467-022-1153-6
产权排序1
英文摘要

Electromagnetically induced optical (or photonic) lattices via atomic coherence in atomic ensembles have recently received great theoretical and experimental interest. We here conceive a way to generate electromagnetically induced moire optical lattices - a twisted periodic pattern when two identical periodic patterns (lattices) are overlapped in a twisted angle (theta) - in a three-level coherent atomic gas working under electromagnetically induced transparency. We show that, changing the twisted angle and relative strength between the two constitutive sublattices, the moire Bloch bands that are extremely flattened can always appear, resembling the typical flat-band and moire physics found in other contexts. Dynamics of light propagation in the induced periodic structures demonstrating the unique linear localization and delocalization properties are also revealed. Our scheme can be implemented in a Rubidium atomic medium, where the predicted moire optical lattices and flattened bands are naturally observable.

语种英语
出版者HIGHER EDUCATION PRESS
WOS记录号WOS:000766568600001
内容类型期刊论文
源URL[http://ir.opt.ac.cn/handle/181661/95771]  
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.Shandong Normal Univ, Collaborat Innovat Ctr Light Manipulat & Applicat, Jinan 250358, Peoples R China
3.East China Univ Technol, Sch Sci, Nanchang 330013, Jiangxi, Peoples R China
4.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,Liu, Xiuye,Zeng, Jianhua. Electromagnetically induced moire optical lattices in a coherent atomic gas[J]. FRONTIERS OF PHYSICS,2022,17(4).
APA Chen, Zhiming,Liu, Xiuye,&Zeng, Jianhua.(2022).Electromagnetically induced moire optical lattices in a coherent atomic gas.FRONTIERS OF PHYSICS,17(4).
MLA Chen, Zhiming,et al."Electromagnetically induced moire optical lattices in a coherent atomic gas".FRONTIERS OF PHYSICS 17.4(2022).
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