The Optical Properties of Cadmium Telluride in the Far Infrared Region
The Optical Properties of Cadmium Telluride in the Far Infrared Region
复制标题
碲化镉远红外区的光学性质
DOI：
10.1143/jpsj.16.533
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发表时间：
1961
影响因子：
1.7
通讯作者：
A. Mitsuishi
中科院分区：
文献类型：
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作者：
A. Mitsuishi
在90°K和300°K两种不同温度下，测量了CdTe在20 µ至约400 µ光谱范围内的反射光谱。Reststrahlen带在65 µ处发现，在90°K时峰值反射率为92%，在67 µ处发现，在300°K时峰值反射率为77%。用Kramers-Kronig色散关系分析了反射光谱，得到了光学常数n和k。结合这些值，确定块体材料的基本晶格色散频率在300°K时为140 cm-1（71.2 µ），在90°K时为144 cm-1（69.5 µ）。还得到了阻尼常数。
The reflection spectra of CdTe were measured in the spectral region from 20 µ up to about 400 µ at the two different temperatures, 90°K and 300°K. The Reststrahlen band was found at 65 µ with peak reflectivity of 92% at 90°K and 67 µ with the peak reflectivity of 77% at 300°K. The reflection spectra were analysed by Kramers-Kronig dispersion relation to obtain the optical constants n and k . Combining these values, the fundamental lattice dispersion frequencies of the bulk material were determined to be 140 cm -1 (71.2 µ) at 300°K and 144 cm -1 (69.5 µ) at 90°K. The damping constant was also obtained.