Enhancement of the Goos–Hänchen shift by electromagnetically induced transparency with amplification

The manipulation of the Goos–Hänchen (GH) shifts of the reflected and transmitted probe beams through a cavity containing ∆-configuration artificial or realistic atomic medium is investigated. Adjusting the coherent control fields of atomic medium, the electromagnetically induced transparency with a...

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Bibliographic Details
Published inOptics communications Vol. 285; no. 10-11; pp. 2668 - 2674
Main Authors Deng, Wen-Wu, Wu, Shao-Ping, Li, Gao-Xiang
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.05.2012
Subjects
Electromagnetically induced transparency with amplification
Enhancement
Goos–Hänchen shift
Negative absorption
Electromagnetically induced transparency with amplification
Enhancement
Goos–Hänchen shift
Negative absorption
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Summary:The manipulation of the Goos–Hänchen (GH) shifts of the reflected and transmitted probe beams through a cavity containing ∆-configuration artificial or realistic atomic medium is investigated. Adjusting the coherent control fields of atomic medium, the electromagnetically induced transparency with amplification (EITA) can be yielded. When the frequency of probe beam is around EITA, the negative as well as positive GH shifts of the reflected and transmitted probe beams can be greatly enhanced by EITA. Meantime, the GH shift can be switched between the considerably large positive and negative values by adjusting the collective phase of the external fields.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2012.01.045