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Ultrafast Relaxation of Coherent Control Photocurrent in AlGaAs/GaAs Multi Quantum Wells
引用本文:林位株,寿倩,刘鲁宁,吴羽,文锦辉,赖天树.Ultrafast Relaxation of Coherent Control Photocurrent in AlGaAs/GaAs Multi Quantum Wells[J].中国物理快报,2005,22(1):188-190.
作者姓名:林位株  寿倩  刘鲁宁  吴羽  文锦辉  赖天树
作者单位:StateKeyLaboratoryofOptoelectronicMaterialsandTechnologies,SunYat-SenUniversity,Guangzhou510275
摘    要: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.

关 键 词:超快松弛  光电流  相干控制  量子井  半导体
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