Measurement of the argon-gas-induced broadening and line shifting of the barium Rydberg level 6s24d 1^D2 by two-photon resonant nondegenerate four-wave mixing  

作　　者：孙江 熊志强 孙娟 王颖 苏红新 

机构地区：[1]College of Physical Science and Technology,Hebei University [2]College of Mathematics and Computer Science,Hebei University

出　　处：《Chinese Physics B》2012年第6期276-279,共4页中国物理B（英文版）

基　　金：Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 10804025);the Natural Science Foundation of Hebei Province,China (Grant No. A2009000147);the Fundation for Photoelectronic Materia Research Base of Natural Science Foundation of Hebei Province,China (Grant Nos. 08B006 and 08B008)

摘　　要：We apply two-photon resonant nondegenerate four-wave mixing with a resonant intermediate state to the obser-vation of the broadening and shifting of the barium Rydberg level 6s24d 1^D2 by collision with argon. The collision broadening and shifting cross sections are measured. This technique is purely optical, and can investigate the pressure dependence of the transverse relaxation rate-P21 between the Rydberg state and an intermediate state, as well as the transverse relaxation rate F20 between the Rydberg state and the ground state.We apply two-photon resonant nondegenerate four-wave mixing with a resonant intermediate state to the obser-vation of the broadening and shifting of the barium Rydberg level 6s24d 1^D2 by collision with argon. The collision broadening and shifting cross sections are measured. This technique is purely optical, and can investigate the pressure dependence of the transverse relaxation rate-P21 between the Rydberg state and an intermediate state, as well as the transverse relaxation rate F20 between the Rydberg state and the ground state.

关 键 词：four-wave mixing collision-induced broadening Rydberg state 

分 类 号：O562[理学—原子与分子物理] O437[理学—物理]