State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China
AbstractThe sub-Doppler transmission spectrum in a thin vapour layer (about 150 μm) was observed at room temperature using the wavelength modulation technology. The absorption signal and its second-order harmonic were detected with an external-cavity diode laser. A sub-Doppler spectrum corresponding to resonant transitions of the caesium $D_2$ line (6S$_{1/2}$→6P$_{3/2}$) was demonstrated. The dependence of the transmission signal on the intensity of the laser was also investigated.
Received: 02 December 2003
Revised: 15 May 2004
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 60078009, 10174047) and the Natural Science Foundation of Shanxi Province (Grant No 20011029).
Cite this article:
Zhao Yan-Ting (赵延霆), Zhao Jian-Ming (赵建明), Huang Tao (黄涛), Xiao Lian-Tuan (肖连团), Jia Suo-Tang (贾锁堂) Experimental investigation of the sub-Doppler transmission spectroscopy in a thin vapour layer at room temperature 2004 Chinese Physics 13 1414
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