期刊
OPTICS COMMUNICATIONS
卷 285, 期 10-11, 页码 2668-2674出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2012.01.045
关键词
Goos-Hanchen shift; Electromagnetically induced transparency with amplification; Negative absorption; Enhancement
类别
资金
- National Natural Science Foundation of China [11074087]
- Natural Science Foundation of Hubei Province [2010CDA075]
- Natural Science Foundation of Wuhan City [201150530149]
- National Basic Research Program of China [2012CB921602]
The manipulation of the Goos-Hanchen (GH) shifts of the reflected and transmitted probe beams through a cavity containing Delta-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. (C) 2012 Elsevier B.V. All rights reserved.
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