| GaAs掺杂超晶格的光反射谱 |
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| 引用本文： | 汤寅生,王炳燊,江德生,庄蔚华,梁基本.GaAs掺杂超晶格的光反射谱[J].物理学报,1988,37(1):157-161. |
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| 作者姓名： | 汤寅生 王炳燊 江德生 庄蔚华 梁基本 |
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| 作者单位： | (1)中国科学技术大学; (2)中国科学院半导体研究所 |
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| 摘 要： | 不同调制光强下测量了MBE GaAs掺杂超晶格的室温光反射谱。较低光强下观察到一系列对应于禁戒跃迁(△n≠0)的精细结构,因此否定了它是三阶微商谱的可能性。明确提出了掺杂超晶格的光反射为一阶微商谱,并讨论了其产生机制。理论计算结果能较好地解释实验现象。
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| 收稿时间： | 1987-02-18 |
PHOT OREFLECTANCE SPECTROSCOPY OF GaAs DOPING SUPERLATTICES |
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| TANG YIN-SHENG,WANG BENG-SHEN,JIANG DE-SHENG,ZHUANG WEI-HUA and LIANG JI-BEN.PHOT OREFLECTANCE SPECTROSCOPY OF GaAs DOPING SUPERLATTICES[J].Acta Physica Sinica,1988,37(1):157-161. |
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| Authors: | TANG YIN-SHENG WANG BENG-SHEN JIANG DE-SHENG ZHUANG WEI-HUA and LIANG JI-BEN |
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| Abstract: | Room temperature photoreflectances of a MBE GaAs doping superlattice were measured under different pump beam intensities. A series of fine structures corresponding to forbidden transitions (△n≠0) were observed af lower pump beam intensities. This means it is net a third derivative spectrum. A first derivative lineshape of photoreflectance for doping super-lattices was suggested, and the modulation mechnism was discussed. Theorefical calculations give a good explanation to the experiments. |
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