Abstract
Polarized photomodulated reflectivity experiments were performed on a series of GaAs/AlAs quantum-wire superlattices. The spectra show clear evidence of anisotropy in the -related optical transitions, becoming more pronounced as the superlattices’ period decreases. A similar anisotropic behavior is also present in the and + critical-point transitions. These anisotropies are attributed to the corrugated nature of the samples.
- Received 7 November 1994
DOI:https://doi.org/10.1103/PhysRevB.51.7890
©1995 American Physical Society