Ultrafast Relaxation of Coherent Control Photocurrent in AlGaAs/GaAs Multi Quantum Wells
LIN Wei-Zhu, SHOU Qian, LIU Lu-Ning, WU Yu,WEN Jin-Hui, LAI Tian-Shu
State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275
Ultrafast Relaxation of Coherent Control Photocurrent in AlGaAs/GaAs Multi Quantum Wells
LIN Wei-Zhu;SHOU Qian;LIU Lu-Ning;WU Yu,WEN Jin-Hui;LAI Tian-Shu
State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275
关键词 ：
72.15.Lh ,
78.67.De ,
42.50.Md
Abstract ： We theoretically and experimentally study the ultrafast dynamics of coherent control photocurrent in AsGaAs/GaAs multi quantum wells at room temperature. A ballistic photocurrent relaxation time of ～200fs is deduced based on the theory of density matrix and is evidenced with the three-colour femtosecond pump--probe measurements.
Key words ：
72.15.Lh
78.67.De
42.50.Md
出版日期: 2005-01-01
:
72.15.Lh
(Relaxation times and mean free paths)
78.67.De
(Quantum wells)
42.50.Md
(Optical transient phenomena: quantum beats, photon echo, free-induction decay, dephasings and revivals, optical nutation, and self-induced transparency)
引用本文:
LIN Wei-Zhu;SHOU Qian;LIU Lu-Ning;WU Yu;WEN Jin-Hui;LAI Tian-Shu. Ultrafast Relaxation of Coherent Control Photocurrent in AlGaAs/GaAs Multi Quantum Wells[J]. 中国物理快报, 2005, 22(1): 188-190.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2005/V22/I1/188
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2005, Vol. 22 
