DIRECT OBSERVATION OF FEMTOSECOND INTERVALLEY SCATTERING IN GASB - ELECTRON-PHONON SCATTERING AND CONTINUUM COHERENT TRANSIENTS

Authors
SMITH DC OSULLIVAN ED ROTA L MACIEL AC RYAN JF
Citation
Dc. Smith et al., DIRECT OBSERVATION OF FEMTOSECOND INTERVALLEY SCATTERING IN GASB - ELECTRON-PHONON SCATTERING AND CONTINUUM COHERENT TRANSIENTS, Physica status solidi. b, Basic research, 204(1), 1997, pp. 110-112
Citations number
4
Journal title
Physica status solidi. b, Basic research → ACNP
ISSN journal
03701972
Volume
204
Issue
1
Year of publication
1997
Pages
110 - 112
Database
ISI
SICI code
0370-1972(1997)204:1<110:DOOFIS>2.0.ZU;2-M
Abstract
Femtosecond Gamma-L intervalley electron scattering has been observed in bulk GaSb and GaSb/AlSb quantum wells using time-resolved different ial transmission and Raman spectroscopy. The reverse process is found to occur on a significantly longer time scale due to long-lived Gamma state occupancy. Tile results are in good agreement with Monte Carlo s imulations. GaSb quantum wells display an additional ultrafast induced absorption when continuum states are excited which may arise from ele ctron-hole coherence effects.