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窄禁带碲镉汞调制光谱的近期进展和前景

Keywords: 步进扫描傅立叶变换红外光谱仪,红外光调制反射,调制光致发光,信噪比,谱分辨率,step-scanFTIRspectrometer,infraredphotoreflectance,modulatedphotoluminescence,signal-to-noiseratio,spectralresolution

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Abstract:

简要介绍了红外光调制反射谱和调制光致发光谱的最新进展,并重点比较了相对于传统实验方法在信噪比,谱分辨率和实验耗时等方面所取得的显著进展.给出了在MBE生长HgCdTe薄膜样品研究中的应用实例,显示了该技术在光谱研究窄禁带半导体带间和低维结构带内跃迁方面的应用前景.

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