Optical transitions in Cd x Hg1 − x Te-based quantum wells and their analysis with account for the actual band structure of the material

Abstract

Quantum-confinement levels in a CdxHg1 − xTe-based rectangular quantum well are calculated in the framework of the four-band Kane model taking into account mixing between the states of electrons and three types of holes (heavy, light, and spin-split holes). Comparison of the calculation results with experimental data on the photoluminescence of CdxHg1 − xTe-based quantum wells suggests that optical transitions involving the conduction and light-hole bands are possibly observed in the spectra.