Photothermal investigations of thermal and optical properties of GaAlAsSb and AlAsSb thin layers

被引:23
作者
Saadallah, F [1 ]
Yacoubi, N
Genty, F
Alibert, C
机构
[1] IPEIN, Merazka 8000, Nabeul, Tunisia
[2] Univ Montpellier 2, Ctr Elect & Microoptoelect Montpellier, F-34095 Montpellier 05, France
关键词
D O I
10.1063/1.1611290
中图分类号
O59 [应用物理学];
学科分类号
摘要
Investigation of the optical and thermal properties of GaAlAsSb/GaSb and AlAsSb/GaSb heterostructures by photothermal deflection spectroscopy (PDS) is presented. From a comparison of the amplitude and phase of the experimental PDS signal with the corresponding theoretical ones, we have determined the thermal conductivities and thickness, as well as the variations versus wavelength of the optical absorption coefficients and refractive indices of the GaAlAsSb and AlAsSb layers. The refractive indices measured in the transparency region and the small values of the thermal conductivity are in good agreement with theoretical interpolation reported in previous literature. (C) 2003 American Institute of Physics.
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页码:5041 / 5048
页数:8
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