| Ultrafast Relaxation of Coherent Control Photocurrent in AlGaAs／GaAs Multi Quantum Wells |
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| 作者姓名： | 林位株 寿倩 刘鲁宁 吴羽 文锦辉 赖天树 |
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| 作者单位： | StateKeyLaboratoryofOptoelectronicMaterialsandTechnologies,SunYat-SenUniversity,Guangzhou510275 |
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| 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.
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| 关 键 词： | 超快松弛 光电流 相干控制 量子井 半导体 |
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