Open AccessOptical constants of CuGa5Se8 crystals
Author(s) -
M. León,
R. Serna,
S. Levcenko,
A. Nateprov,
A. Nicorici,
J. M. Merino,
E. J. Friedrich,
E. Arushanov
Publication year - 2007
Publication title -
journal of applied physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.699
H-Index - 319
eISSN - 1089-7550
pISSN - 0021-8979
DOI - 10.1063/1.2817896
Subject(s) - refractive index , attenuation coefficient , dielectric , annealing (glass) , reflectivity , dielectric function , materials science , condensed matter physics , optics , photon , absorption (acoustics) , range (aeronautics) , permittivity , molecular physics , computational physics , chemistry , physics , optoelectronics , composite material
Spectral dependence of the real ε1 (ω) and imaginary ε2 (ω) parts of the complex dielectric function, complex refractive index, absorption coefficient, and normal-incidence reflectivity of Cu Ga5 Se8 crystals with slightly different Cu contents are modeled using Adachi's model for interband transitions. The results are in good agreement with the experimental data over the entire range of photon energies. The model parameters are determined using the simulated annealing algorithm. © 2007 American Institute of Physics.Peer Reviewe
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