Generation of nonequilibrium optical phonons in GaAs/AlAs quantum wells by intrasubband and intersubband scatterings
Conference
·
OSTI ID:5606417
The generation of a nonequilibrium population of optical phonons by photoexcited hot electrons in semiconductor quantum wells is investigated theoretically. The microscopic model of electron-phonon interaction proposed by Huang and Zhu has been used to compute the distributions of confined longitudinal optical phonons and interface modes in GaAs/AlAs quantum wells as a function of well width. Experimental tests of the calculated distributions by Raman scattering are discussed.
- Research Organization:
- Lawrence Berkeley Lab., CA (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5606417
- Report Number(s):
- LBL-31481; CONF-9106105--1; ON: DE92010264
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360606 -- Other Materials-- Physical Properties-- (1992-)
665400* -- Quantum Physics Aspects of Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
COUPLING
ELECTRON-PHONON COUPLING
FUNCTIONS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
HAMILTONIAN FUNCTION
MATERIALS
PHONONS
PHYSICS
PNICTIDES
POTENTIALS
QUASI PARTICLES
SEMICONDUCTOR MATERIALS
SOLID STATE PHYSICS
360606 -- Other Materials-- Physical Properties-- (1992-)
665400* -- Quantum Physics Aspects of Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
COUPLING
ELECTRON-PHONON COUPLING
FUNCTIONS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
HAMILTONIAN FUNCTION
MATERIALS
PHONONS
PHYSICS
PNICTIDES
POTENTIALS
QUASI PARTICLES
SEMICONDUCTOR MATERIALS
SOLID STATE PHYSICS