Coherent optical phonon generation by the electric current in quantum wells

Authors
Komirenko, SM Kim, KW Kochelap, VA Fedorov, I Stroscio, MA
Citation
Sm. Komirenko et al., Coherent optical phonon generation by the electric current in quantum wells, APPL PHYS L, 77(25), 2000, pp. 4178-4180
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
77
Issue
25
Year of publication
2000
Pages
4178 - 4180
Database
ISI
SICI code
0003-6951(200012)77:25<4178:COPGBT>2.0.ZU;2-U
Abstract
This letter addresses the effect of generation of confined LO phonons by dr ifting electrons in quantum wells. We have derived a general formula for th e phonon increment as a function of phonon wave vector, electron drift velo city, and structure parameters. Numerical estimates of the phonon increment and the phonon lifetimes have shown that AlAs/GaAs/AlAs and GaSb/InSb/GaSb quantum well structures can demonstrate the effect of coherent LO phonon g eneration by the electric current. (C) 2000 American Institute of Physics. [S0003-6951(00)03152-1].