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铯原子磁光阱中冷原子的缀饰态光谱 被引量:2

Dressed-Atom Spectra of Cold Cesium Atoms Trapped in a Magneto-Optical trap
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摘要 在磁光阱中的铯原子由于冷却光的存在将被缀饰化。借助于波长为852.3 nm(对应于铯原子6S1/2F=4→6P3/2F′=3和6S1/2F=4→6P3/2F′=4超精细跃迁)和794.6 nm(对应于铯原子6P3/2F′=5→8S1/2F″=4超精细跃迁)的探测光的透射光谱分别对磁光阱中冷原子基态6S1/2F=4和激发态6P3/2F′=5在冷却光作用下形成的缀饰态分裂进行了实验研究,并分析了其光谱特性。结果表明,在冷却光强度、失谐量相同的实验条件下,基态、激发态的缀饰分裂间距相同,与缀饰态理论预言一致。 Due to the strong cooling laser,the cesium cold atoms trapped in a magneto-optical trap are dressed.The dressed splitting was observed arising from cooling laser for the ground state 6S1/2 F=4 and excited state 6P3/2 F′=5 using the probe laser with the wavelengths of 852.3 nm(corresponding to the transitions of 6S1/2 F=4→6P3/2 F′=3 and 6S1/2 F=4→6P3/2 F′=4 of cesium atom) and 794.6 nm(corresponding to the transition of 6P3/2 F′=5 and 8S1/2 F″=4 of cesium atom),respectively,and their spectral properties were analysed.The results show that the dressed splitting for the ground state 6S1/2 F=4 is the same with that for the excited state 6P3/2 F′=5 for the same intensity and detuning of cooling laser,which is consistent with the prediction based on the dressed state theory.
出处 《光学学报》 EI CAS CSCD 北大核心 2010年第11期3124-3127,共4页 Acta Optica Sinica
基金 国家自然科学基金(60978017 610178051 10974125 60821004) 教育部新世纪优秀人才支持计划(NCET-07-0524) 国家重大科学研究计划(2006CB921102) 高等学校博士点专项科研经费(20070108003)资助课题
关键词 原子与分子物理学 缀饰态 冷原子 磁光阱 atomic and molecular physics dressed state cold atom magneto-optical trap
作者简介 杨保东(1980-),男,博士研究生,主要从事量子光学与冷原子物理实验等方面的研究。E—mail:ybd@sxu.edu.cn 王军民(1967-),男,博士,教授,主要从事量子光学与冷原子物理等方面的研究。E—mail:wwjjmm@sxu.edu.cn(通信联系人)
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