COHERENT TO PHONON RELAXATION IN GAAS AND INP

Citation
F. Ganikhanov et F. Vallee, COHERENT TO PHONON RELAXATION IN GAAS AND INP, Physical review. B, Condensed matter, 55(23), 1997, pp. 15614-15618
Citations number
35
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
01631829
Volume
55
Issue
23
Year of publication
1997
Pages
15614 - 15618
Database
ISI
SICI code
0163-1829(1997)55:23<15614:CTPRIG>2.0.ZU;2-L
Abstract
Relaxation of coherent TO phonons is investigated in bulk GaAs and InP using an infrared time-resolved coherent anti-Stokes Raman scattering technique. Measurements were performed as a function of the crystal t emperature in the range 10-300 K permitting determination of the domin ant TO phonon relaxation channels. The experimental results an consist ent with TO phonon decay into a TA and a LA phonon in GaAs while in In P decay into two identical energy LA phonons dominates at low temperat ures.