Abstract
A complete set of the model dielectric functions, ε(ω), for calculation of the optical dispersion relations of semiconductors are presented. The model is based on the Kramers–Kronig transformation and includes the E0, E0+Δ0, E1, E1+Δ1, E′0 (E0+Δ′0), E2, E1, and Eidg (indirect-band-gap) transitions as the main dispersion mechanisms. Detailed analyses are presented for AlSb, and results are in satisfactory agreement with the experimental data over the entire range of photon energies (0–6.0 eV). Dielectric-related optical data of AlSb, such as the refractive index, the extinction coefficient, and the absorption coefficient, are also presented as an example of the ability of our model.
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