Polarization spectroscopy of the 1S0-3P1 transition of mercury isotopes at 253.7 nm  

作　　者：付小虎 刘亢亢 赵儒臣 苟唯 孙剑芳 徐震 王育竹 

机构地区：[1]Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences [2]University of Chinese Academy of Science [3]Center for Cold Atom Physics, Chinese Academy of Sciences

出　　处：《Chinese Optics Letters》2015年第7期110-114,共5页中国光学快报（英文版）

基　　金：supported by the Research Project of Shanghai Science and Technology Commission(Grant No.09DJ1400700);the National Natural Science Foundation of China(Grant Nos.91436105);the National Basic Research Program of China(Grant No.2011CB921504)

摘　　要：We experimentally observe polarization spectroscopy （PS） of the 1S0-3P1 transition of mercury atom gases at 253.7 nm. The PS signal can be observed in all six richly abundant isotopes and the PS signal of six transitions for laser cooling are all clear and of a dispersive line shape. The optimized pump power and probe power are found for the PS of 202 Hg. We find the linearly polarized component in the pump beam will distort the original P S signal due to the use of linear PS. Consequently, the purity of the pump beam is crucial to laser frequency stabilization by PS.We experimentally observe polarization spectroscopy （PS） of the 1S0-3P1 transition of mercury atom gases at 253.7 nm. The PS signal can be observed in all six richly abundant isotopes and the PS signal of six transitions for laser cooling are all clear and of a dispersive line shape. The optimized pump power and probe power are found for the PS of 202 Hg. We find the linearly polarized component in the pump beam will distort the original P S signal due to the use of linear PS. Consequently, the purity of the pump beam is crucial to laser frequency stabilization by PS.

关 键 词：Frequency stability ISOTOPES Laser cooling Mercury (metal) Pumping (laser) SPECTROSCOPY 

分 类 号：O562.3[理学—原子与分子物理]