Observation of Sub-femtosecond Polarization Beats Using Twin Noisy Driving Fields  

作　　者：李创社 沈磊剑 杜贻刚 郑淮斌 聂志强 杨永明 张伟峰 甘琛利 张彦鹏 

机构地区：[1]Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049 [2]Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA [3]School of Science, Xi'an University of Architecture and Technology, Xi'an 710055

出　　处：《Chinese Physics Letters》2008年第8期2892-2895,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 60308002 and 60678005, the Foundation for the Author of National Excellent Doctoral Dissertation of China under Grant No 200339, the Foundation for Key Programme of Ministry of Education of China under Grant No 105156, the For Ying-Tong Education Foundation for Young Teachers in the Institutions of Higher Education of China under Grant No 101061, and the Specialized Research Fund for the Doctoral Programme of Higher Education of China under Grant No 20050698017.

摘　　要：We study the phase-conjugate polarization interference in a V-type three-level system and obtain an analytic closed form for the second-order stochastic correlation of sum-frequency polarization beat. In our Na vapour atomic system pumped by laser pulse of nano-second timescale duration, we experimentally demonstrate an ultrafast modulation of the four-wave mixing signal intensity with a sub-femtosecond timescale period, corre- sponding to the sum-frequency of the resonant transitions from 3S1/2 to 3Pl/2 and 3P3/2.We study the phase-conjugate polarization interference in a V-type three-level system and obtain an analytic closed form for the second-order stochastic correlation of sum-frequency polarization beat. In our Na vapour atomic system pumped by laser pulse of nano-second timescale duration, we experimentally demonstrate an ultrafast modulation of the four-wave mixing signal intensity with a sub-femtosecond timescale period, corre- sponding to the sum-frequency of the resonant transitions from 3S1/2 to 3Pl/2 and 3P3/2.

关 键 词：COLOR-LOCKING 

分 类 号：O42[理学—声学]