ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The intrinsic absorption spectra for very thin Hg1−xCdxTe bulk samples with compositions x ranging from 0.276 to 0.443 have been obtained at different temperatures. Based on the measured absorption curves and Kramers–Kronig relation, the refractive index dispersion has been calculated in the wavelength region near and below the band gap at temperatures from 4.2 to 300 K. For Hg1−xCdxTe samples with x from 0.276 to 0.443, the dispersion relation can be described by an empirical formula: n(λ,T)2=A+B/[1−(C/λ)2]+Dλ2, where the parameters A, B, C, and D are both temperature and composition dependent. In addition, a peak in the deduced dispersion spectra appears just at the wavelength corresponding to the band-gap energy Eg(x,T) of Hg1−xCdxTe.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.356001
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