ABSORPTION AND EMISSION OF FAR-IR RADIATION BY HOT HOLES IN GAAS ALGAAS QUANTUM-WELLS/

Authors
VOROBEV LE DONETSKII DV GOLUB LE
Citation
Le. Vorobev et al., ABSORPTION AND EMISSION OF FAR-IR RADIATION BY HOT HOLES IN GAAS ALGAAS QUANTUM-WELLS/, JETP letters, 63(12), 1996, pp. 977-982
Citations number
12
Categorie Soggetti
Physics
Journal title
JETP letters → ACNP
ISSN journal
00213640
Volume
63
Issue
12
Year of publication
1996
Pages
977 - 982
Database
ISI
SICI code
0021-3640(1996)63:12<977:AAEOFR>2.0.ZU;2-5
Abstract
It is found that when holes in GaAs/Al0.5Ga0.5As quantum wells are hea ted by a longitudinal electric field, the absorption in the far-IR reg ion of the spectrum changes. The spontaneous emission spectrum in the far-IR range is measured. It is shown that the absorption and emission are due to direct intersubband transitions of holes near the peaks in the reduced density of states. The experimental data are in agreement with a theoretical calculation. (C) 1996 American Institute of Physic s.