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Electromagnetically induced moire optical lattices in a coherent atomic gas
Chen, Zhiming1,2,3; Liu, Xiuye1,2,3; Zeng, Jianhua1,4
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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.

Keywordelectromagnetically induced transparency moire optical lattices extremely flat bands light propagation coherent atomic gas
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WOS IDWOS:000766568600001
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Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorZeng, Jianhua
Affiliation1.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China
2.East China Univ Technol, Sch Sci, Nanchang 330013, Jiangxi, Peoples R China
3.Shandong Normal Univ, Collaborat Innovat Ctr Light Manipulat & Applicat, Jinan 250358, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
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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