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Localized gap modes of coherently trapped atoms in an optical lattice
Source PublicationOptics Express
Contribution Rank3

We theoretically investigate one-dimensional localized gap modes in a coherent atomic gas where an optical lattice is formed by a pair of counterpropagating far-detuned Stark laser fields. The atomic ensembles under study emerge as Λ-type three-level configuration accompanying the effect of electromagnetically induced transparency (EIT). Based on Maxwell- Bloch equations and the multiple scales method, we derive a nonlinear equation governing the spatial-temporal evolution of the probe-field envelope. We then uncover the formation and properties of optical localized gap modes of two kinds, such as the fundamental gap solitons and dipole gap modes. Furthermore, we confirm the (in)stability regions of both localized gap modes in the respective band-gap spectrum with systematic numerical simulations relying on linear-stability analysis and direct perturbed propagation. The predicted results may enrich the nonlinear horizon to the realm of coherent atomic gases and open up a new door for optical communication and information processing. © 2021 Optical Society of America.

Indexed BySCI ; EI
WOS IDWOS:000614617700006
PublisherOSA - The Optical Society
EI Accession Number20210509837138
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorZENG, JIANHUA
Affiliation1.School of Science, East China University of Technology, Nanchang; 330013, China;
2.Collaborative Innovation Center of Light Manipulations and Applications, Shandong Normal University, Jinan; 250358, China;
3.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
Recommended Citation
GB/T 7714
CHEN, ZHIMING,ZENG, JIANHUA. Localized gap modes of coherently trapped atoms in an optical lattice[J]. Optics Express,2021,29(3):3011-3025.
APA CHEN, ZHIMING,&ZENG, JIANHUA.(2021).Localized gap modes of coherently trapped atoms in an optical lattice.Optics Express,29(3),3011-3025.
MLA CHEN, ZHIMING,et al."Localized gap modes of coherently trapped atoms in an optical lattice".Optics Express 29.3(2021):3011-3025.
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