Autler–Townes spectroscopy of high-lying state by phase conjugate six-wave mixing  

作　　者：白金海 李建军 吴令安 傅盘铭 王如泉 左战春 

机构地区：[1]Laboratory of Optical Physics,Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 1O0190,China

出　　处：《Chinese Physics B》2017年第4期207-213,共7页中国物理B（英文版）

基　　金：Project supported by the National Basic Research Program of China(Grant No.2013CB922002);the National Natural Science Foundation of China(Grant Nos.11274376 and 61308011);the National High Technology Research and Development Program of China(Grant No.2011AA120102)

摘　　要：An Autler-Townes（AT） spectroscopy based on phase conjugate six-wave mixing（SWM） is proposed to detect AT doublet of high-lying state in a Doppler-broadened cascade four-level system.It is found that the SWM spectrum is dependent strongly on the ratios between the magnitudes of the wave vectors.We discuss how the Doppler broadening affects the SWM spectrum from a time-domain viewpoint and find that,due the atomic motion,the atomic polarizations acquire different phases for atoms with different velocities as time evolves.The Doppler free SWM spectrum can be obtained only when the atomic polarization can be rephasing again at certain time after the interactions of all the incident fields.An Autler-Townes（AT） spectroscopy based on phase conjugate six-wave mixing（SWM） is proposed to detect AT doublet of high-lying state in a Doppler-broadened cascade four-level system.It is found that the SWM spectrum is dependent strongly on the ratios between the magnitudes of the wave vectors.We discuss how the Doppler broadening affects the SWM spectrum from a time-domain viewpoint and find that,due the atomic motion,the atomic polarizations acquire different phases for atoms with different velocities as time evolves.The Doppler free SWM spectrum can be obtained only when the atomic polarization can be rephasing again at certain time after the interactions of all the incident fields.

关 键 词：Autler-Townes splitting six-wave mixing Doppler broadening 

分 类 号：O433[机械工程—光学工程]