Enhancement of the Goos-H盲nchen shift by electromagnetically induced transparency with amplification

详细信息	查看全文 | 推荐本文 |

• 作者：Wen-Wu Deng^a ; ^b ; Shao-Ping Wu^a ; Gao-Xiang Li^a ; ^{gaox@phy.ccnu.edu.cn}
• 关键词：Goos&ndash ; Hä ; nchen shift ; Electromagnetically induced transparency with amplification ; Negative absorption ; Enhancement
• 刊名：Optics Communications
• 出版年：2012
• 期刊代码：50_00304018
• 类别：ph
• 出版时间：15 May, 2012
• 卷：285
• 期：10-11
• 页码：2668-2674
• 文件大小：1098 K

摘要

The manipulation of the Goos-H盲nchen (GH) shifts of the reflected and transmitted probe beams through a cavity containing 鈭?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.