1211.6362 (V. V. Solovyev et al.)

Light-hole quantization in the optical response of ultrawide
GaAs/Al$_x$Ga$_{1-x}$As quantum wells    [PDF]

V. V. Solovyev, V. A. Bunakov, S. Schmult, I. V. Kukushkin

Temperature-dependent reflectivity and photoluminescence spectra are studied for undoped ultra-wide 150 nm and 250 nm GaAs quantum wells. It is shown that spectral features previously attributed to a size quantization of exciton motion in z-direction coincide well with energies of quantized levels for light holes. Furthermore, optical spectra reveal very similar properties at temperatures above exciton dissociation point.

View original: http://arxiv.org/abs/1211.6362