Observation of coherent optical phonons in GaAs/AlxGa1-xAs single heterojunctions
Journal
Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest
Journal Volume
2
Pages
546
Date Issued
2003
Author(s)
Abstract
Time-resolved second-harmonic generation was used to generate and detect coherent LO phonons in semiconductor heterojunctions. Three coherent LO/sub GaAs/, LO/sub GaAs-like/, and LO/sub AlAs-like/ phonons were launched by transiently screening the depletion field in the GaAs/Al/sub x/Ga/sub 1-x/ interfacial region.
Publisher
Institute of Electrical and Electronics Engineers Inc.
Type
conference paper