| Gain Spectrum in an Asymmetric Double Quantum Well |
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| 作者姓名： | 徐卫华 吴金辉 高锦岳 |
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| 作者单位： | [1]DepartmentofPhysics,CollegeofScience,ShenzhenUniversity,Shenzhen518060 [2]KeyLaboratoryforCoherentLight,AtomicandMolecularSpectroscopy（MinistryofEducation）,JilinUniversity,Changchun130023 |
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| 摘 要： | We propose a scheme for light amplification in an asymmetric double quantum well, where two excited states are coupled by resonant tunnelling through a thin barrier in a three-level system of electronic subbands. By applying a single driving laser, the steady state gain can be obtained. The calculated gain spectrum for an asymmetric GaAs/AlGaAs double quantum well structure was presented.
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| 关 键 词： | 光谱放大系数 双量子井 不对称 激发态 原子一致效应 半导体 |
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