Optical Vibrational Modes and Electron-Phonon Interaction in GaAs Quantum Wells
- 24 September 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 53 (13) , 1280-1283
- https://doi.org/10.1103/physrevlett.53.1280
Abstract
We have discovered phonons active in resonant Raman scattering from GaAs quantum-well heterostructures that are actually the optical vibrations of a thin ionic slab. These modes are revealed by selection rules for the polarizations of incident and scattered light that are different from those of bulk GaAs. Analysis of the Raman tensor indicates new deformation-potential electron-phonon scattering processes which are a direct consequence of the reduced symmetry of the layered system.Keywords
This publication has 11 references indexed in Scilit:
- Light scattering from vibrational modes insuperlattices and related alloysPhysical Review B, 1983
- Observation of Folded Acoustic Phonons in a Semiconductor SuperlatticePhysical Review Letters, 1980
- Raman scattering in superlattices: Anisotropy of polar phononsApplied Physics Letters, 1980
- Light scattering spectra of guided wave polaritons in thin crystals: ExperimentSolid State Communications, 1978
- Optical birefringence of ultrathin AlxGa1−xAs-GaAs multilayer heterostructuresJournal of Applied Physics, 1978
- Selection Rules in Raman Scattering from Surface PolaritonsPhysical Review Letters, 1977
- Piezo-Electroreflectance in Ge, GaAs, and SiPhysical Review B, 1968
- Optical Modes of Vibration in an Ionic Crystal Slab Including Retardation. I. Nonradiative RegionPhysical Review B, 1966
- Optical Modes of Vibration in an Ionic Crystal SlabPhysical Review B, 1965
- Infrared Absorption at Longitudinal Optic Frequency in Cubic Crystal FilmsPhysical Review B, 1963