Plasma-induced spatiotemporal modulation of propagating femtosecond pulses  

作　　者：丁立涛 宋娟 孙真荣 邓莉 王祖赓 

机构地区：[1]Key Laboratory of Optical and Magnetic Resonance Spectroscopy (East China Normal University),Ministry of Education, and Department of Physics, East China Normal University, Shanghai 200062 [2]Key Laboratory of Optical and Magnetic Resonance Spectroscopy (East China Normal University),Ministry of Education,and Department of Physics, East China Normal University, Shanghai 200062

出　　处：《Chinese Optics Letters》2006年第10期617-620,共4页中国光学快报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China (No. 10234030 and 10574046) the National Key Project for Basic Research of China (No. 1999075204)the Doctoral Program of High Education (No. 20050269011), the Program for New Century Excellent Talents in University (No. NCET-04-0420) the Phosphor Project sponsored by Shanghai Science and Technology Committee (No. 06QH14003)the Twilight Project sponsored by Shanghai Education Committee (No. 03SG23).

摘　　要：The dynamics of the femtosecond pulse propagation in a plasma channel is investigated by the pumpprobe longitudinal diffractometry and second harmonic generation frequency-resolved optical gating （SHGFROG） technique. The spatial characteristics, corresponding to the electronic density and the size of the channel, can be observed by the recorded ring pattern, and the spectral and temporal characteristics are recorded by the SHG-FROG traces. The spatiotemporal characteristics will help us to better understand the dynamics of the plasma induced by the femtosecond pulse and the femtosecond pulse propagating in the plasma channel.The dynamics of the femtosecond pulse propagation in a plasma channel is investigated by the pumpprobe longitudinal diffractometry and second harmonic generation frequency-resolved optical gating （SHGFROG） technique. The spatial characteristics, corresponding to the electronic density and the size of the channel, can be observed by the recorded ring pattern, and the spectral and temporal characteristics are recorded by the SHG-FROG traces. The spatiotemporal characteristics will help us to better understand the dynamics of the plasma induced by the femtosecond pulse and the femtosecond pulse propagating in the plasma channel.

关 键 词：MODULATION Second harmonic generation 

分 类 号：O53[理学—等离子体物理]