Temperature Dependence of Dark Lines in Coherent Population Trapping
DENG Jian-Liao, HU Zheng-Feng, HE Hui-Juan, WANG Yu-Zhu
Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
Temperature Dependence of Dark Lines in Coherent Population Trapping
DENG Jian-Liao;HU Zheng-Feng;HE Hui-Juan;WANG Yu-Zhu
Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
关键词 ：
32.50.+d ,
32.70.Jz ,
42.50.Gy ,
42.62.Eh
Abstract ： We measure the signal amplitude and linewidth of a dark line in coherent population trapping in the Rb vapour cell filled with mixed buffer gas N2 and Ar as a function of cell temperature. We find that the dark line signal amplitude increases with temperature up to a maximum at 49°C and then drops at higher temperatures due to quenching effects of N2 . The linewidth of the dark line remains basically constant, at 1080Hz. We also measure the linewidth of the dark line as a function of laser intensity. The linewidth increases linearly with laser intensity. An intrinsic linewidth (FWHM=896Hz at 3.4GHz) of the Rb cell is obtained.
Key words ：
32.50.+d
32.70.Jz
42.50.Gy
42.62.Eh
出版日期: 2006-07-01
:
32.50.+d
(Fluorescence, phosphorescence (including quenching))
32.70.Jz
(Line shapes, widths, and shifts)
42.50.Gy
(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
42.62.Eh
(Metrological applications; optical frequency synthesizers for precision spectroscopy)
引用本文:
DENG Jian-Liao;HU Zheng-Feng;HE Hui-Juan;WANG Yu-Zhu. Temperature Dependence of Dark Lines in Coherent Population Trapping[J]. 中国物理快报, 2006, 23(7): 1745-1748.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2006/V23/I7/1745
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2006, Vol. 23 
