物理学报2012，Vol.61Issue(11)：334-338,5.
双光子共振非简并四波混频测量Ba原子里德伯态的碰撞展宽和频移
Measurement of the argon-gas-induced broadening and shifting of the barium Rydberg levels by two-photon resonant nondegenerate four-wave mixing
摘要
Abstract
We apply two-photon resonant nondegenerate four-wave mixing with a resonant intermediate state for observing the broadening and the shifting of the barium Rydberg 6snd 1D2 series by collision with argon.The collision broadenings and the collision shifting cross sections are measured for n = 16-33.This technique is a purely optical means,and can achieve Doppler-free resolution of narrow spectral structures of Rydberg levels when the incident lasers have narrow bandwidths.Different from other experimental methods of studying the pressure dependence of the longitudinal relaxation rate of Rydberg states,our method is to investigate the pressure dependence of the transverse relaxation rate of the transition.关键词
四波混频/碰撞展宽/里德伯态Key words
four-wave mixing/collision-induced broadening/Rydberg state分类
数理科学引用本文复制引用
孙江,孙娟,王颖,苏红新..双光子共振非简并四波混频测量Ba原子里德伯态的碰撞展宽和频移[J].物理学报,2012,61(11):334-338,5.基金项目
国家自然科学基金青年科学基金 （）
河北省自然科学基金 （）
河北省自然科学基金基地专项（批准号：08B006,08B008）资助的课题 （）
