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N型四能级原子介质中古斯-汉欣位移的相干控制 被引量：1

Coherent manipulation of the Goos-Hnchen shift in four-level atomic medium
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摘要 通过外加控制场调控腔中N型四能级介质的吸收-色散关系,从而调控反射光和透射光的古斯-汉欣位移.研究表明,在没有外加弱信号控制场的电磁感应透明状态,反射光和透射光的古斯-汉欣位移完全重合;当加上弱信号控制场时,反射光的古斯-汉欣位移对信号场强度、失谐量的变化比较灵敏.可以通过外加控制场使介质在弱吸收的情况下调控古斯-汉欣位移,实现大的、负向古斯-汉欣位移. The Goos-Hnchen shifts of the reflected and transmitted light beam through a cavity containing four-level atomic medium was investigated by modifying the dispersion-absorption properties.The results showed that the lateral shifts of the reflected and transmitted beam could be easily controlled by adjusting the detuning and intensity of the external signal field.The Goos-Hnchen shift of reflected light beam was very sensitive and could be the positive or negative shift.
作者 邓文武
机构地区 华中师范大学物理科学与技术学院 咸宁学院光子学与光子技术研究所
出处 《湖北大学学报（自然科学版）》 CAS 2012年第2期129-133,共5页 Journal of Hubei University：Natural Science
基金 咸宁学院科研项目(KY11043)资助
关键词 四能级原子 吸收-色散性质 古斯-汉欣位移 调控 four-level atom absorption-dispersion property Goos-Hnchen shift manipulation
分类号 O431.2 [机械工程—光学工程]
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参考文献22

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二级参考文献16

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湖北大学学报（自然科学版）
2012年 第2期

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