受激Raman谱中的宏观极化干涉  

Macroscopic effects in stimulated Raman spectra

作　　者：裴丽娅[1] 左战春[1] 吴令安[1] 傅盘铭[1] 

机构地区：[1]中国科学院物理研究所,北京凝聚态物理国家实验室,北京100190

出　　处：《物理学报》2013年第18期223-228,共6页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10974252;11274376;60978002);国家重点基础研究发展计划(批准号:2010CB922904);国家高技术研究发展计划(批准号:2011AA120102)资助的课题~~

摘　　要：研究了Rb85原子蒸气D1线系统中的受激Raman增益与损耗现象.实验中观察到随着抽运光失谐量的增大,受激Raman谱明显地呈现出一个从增益到损耗的陡峭转变.从缀饰态模型出发,我们提出这是对探测光有相反贡献的不同速度原子群之间极化干涉的结果.In stimulated Raman gain and loss spectra with the D1 line of an Rbs5 atomic vapor system we observe experimentally that as the detuning of the pump field becomes larger, a probe beam can exhibit a sharp transition from gain to loss. We use the dressed-state model to explain this phenomenon as the consequence of polarization interference between atoms of different velocities, which have competing contributions to the probe beam.

关 键 词：受激Raman谱 电磁感应透明 极化干涉 

分 类 号：O436.1[机械工程—光学工程]