Optical Constants of In_<1-x>Ga_xSb Ternary Alloys : Experiment and Modeling
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概要
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The optical response of In_<1-x>Ga_Sb ternary alloys in the 1.5-5.4-eV photon-energy range at room temperature is measured by spectroscopic ellipsometry (SE). The measured SE data show distinct structures at energies of the E_1,E_1+Δ_1,E^'_0,E^'_0+Δ^'_0,E_2 and E^'_1 critical points. These spectra are analyzed on the basis of a simplified model of interband transitions. The model proposed here enables us to obtain the optical response in In_<1-x>Ga_xSb alloys of arbitrary composition (x) and photon energy (E=&plank;ω). Results of the surface-treatment effect on the pseudodielectric functions are also presented.
- 社団法人応用物理学会の論文
- 1993-09-15
著者
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Adachi Sadao
Department Of Electronic Engineering Gunma University
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Imai S
Ritsumeikan University
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Imai Shun
Department Of Radiology Nagano Municipal Hospital
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