Fifth-order phase-sensitive detection of ultrafast polarization beats in cascade four-level system  

作　　者：聂志强 李沛哲 余孝军 张彦鹏 姜彤 李岭 甘琛利 左翠翠 张鹏飞 宋建平 卢克清 

机构地区：[1]Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China [2]Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA [3]State Key Laboratory of Transient Optics and Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China

出　　处：《Chinese Physics B》2008年第3期978-987,共10页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos60308002and60678005);the Foundation for the Author of National Excellent Doctoral Dissertation of China(Grant No200339);the Foundation for Key Program of Ministry of Education,China(Grant No105156);the Fok Ying-Tong Education Foundation for Young Teachers in the Higher Education Institutions of China(Grant No101061);the Specialized Research Fund for the Doctoral Program of Higher Education of China(Grant No20050698017)

摘　　要：We study the colour-locked twin-noisy-field correlation effects in the fifth-order nonlinear susceptibility of ultrafast polarization beats in a cascade four-level system. More importantly, the fifth-order phase-sensitive heterodyne detection of ultrafast polarization beats has been exploited. The fifth-order nonlinear optical response can be controlled and modified through the colour-locked correlation of twin noisy fields. Thus, this method with the phase dispersion information is a good way to measure the real and imaginary parts of the fifth-order nonlinear susceptibility.We study the colour-locked twin-noisy-field correlation effects in the fifth-order nonlinear susceptibility of ultrafast polarization beats in a cascade four-level system. More importantly, the fifth-order phase-sensitive heterodyne detection of ultrafast polarization beats has been exploited. The fifth-order nonlinear optical response can be controlled and modified through the colour-locked correlation of twin noisy fields. Thus, this method with the phase dispersion information is a good way to measure the real and imaginary parts of the fifth-order nonlinear susceptibility.

关 键 词：ultrafast polarization beat nonlinear susceptibility phase-sensitive detection 

分 类 号：O562.3[理学—原子与分子物理] O431.2[理学—物理]