FEMTOSECOND CARRIER DYNAMICS IN THE PRESENCE OF A COLD-PLASMA IN GAASAND ALGAAS

Authors
ACIOLI LH ULMAN M VALLEE F FUJIMOTO JG
Citation
Lh. Acioli et al., FEMTOSECOND CARRIER DYNAMICS IN THE PRESENCE OF A COLD-PLASMA IN GAASAND ALGAAS, Applied physics letters, 63(5), 1993, pp. 666-668
Citations number
22
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
63
Issue
5
Year of publication
1993
Pages
666 - 668
Database
ISI
SICI code
0003-6951(1993)63:5<666:FCDITP>2.0.ZU;2-M
Abstract
The femtosecond dynamics of hot carriers interacting with a cold high density electron-hole plasma are investigated in GaAs and Al0.2Ga0.8As . Studies are performed using a three pulse pump-probe technique where a cold plasma is first generated by a femtosecond pulse, then pump-pr obe transmission measurements are performed after a few hundred picose conds delay. The results indicate only a small increase of the hot car rier thermalization rate even for plasma densities as high as 10(18) c m-3.