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国家自然科学基金(10974252)

作品数:4 被引量:5H指数:2
相关作者:傅盘铭裴丽娅左战春吴令安王如泉更多>>
相关机构:中国科学院更多>>
发文基金:国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划更多>>
相关领域:理学机械工程更多>>

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受激Raman谱中的宏观极化干涉被引量:3
2013年
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.
裴丽娅左战春吴令安傅盘铭
关键词:电磁感应透明极化干涉
铷蒸气Λ-型系统中的受激Raman谱与光泵效应被引量:5
2013年
从理论和实验上研究了85Rb原子蒸气D1线系统中的受激Raman现象.在Λ-型能级系统中,抽运光对弱探测光的影响有两部分:受激Raman激发和光泵效应.在一定的抽运光强度和失谐量条件下,受激Raman谱表现为增益谱或损耗谱;以光泵效应导致的吸收谱为背景时,便分别形成了窄线宽透明窗口或线宽差异很大的吸收双线.理论模拟和实验结果基本符合.基于这些研究,从新的角度阐述了在Λ-型系统中的电磁感应透明和Autler-Townes分裂这两个重要现象与受激Raman谱之间的关系.
裴丽娅王如泉左战春吴令安傅盘铭
关键词:电磁感应透明
Electromagnetically induced transparency based six-wave mixing in a Doppler-broadened folded four-level system
2010年
We study phase-conjugate six-wave mixing spectroscopy based on electromagnetically-induced-transparency in a Doppler-broadened folded four-level system. It is found that the six-wave mixing spectrum can be either Doppler-free or very broad, depending on whether the interference between the polarisations of atoms with different velocities is constructive or destructive. To obtain the Doppler-free six-wave mixing spectrum in the folded four-level system, the conditions are more stringent in comparison with those in the cascade and N-type four-level systems. This polarisation interference can be controlled in the presence of a strong coupling field.
牛金艳裴丽娅吴令安傅盘铭
Macroscopic effects in electromagnetically-induced transparency in a Doppler-broadened system
2015年
We study the electromagnetically-induced transparency(EIT) in a Doppler-broadened cascaded three-level system.We decompose the susceptibility responsible for the EIT resonance into a linear and a nonlinear part, and the EIT resonance reflects mainly the characteristics of the nonlinear susceptibility. It is found that the macroscopic polarization interference effect plays a crucial role in determining the EIT resonance spectrum. To obtain a Doppler-free spectrum there must be polarization interference between atoms of different velocities. A dressed-state model, which analyzes the velocities at which the atoms are in resonance with the dressed states through Doppler frequency shifting, is employed to explain the results.
裴丽娅牛金艳王如泉屈一至吴令安傅盘铭左战春
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