NEW METHOD FOR STUDYING BIAXIAL DEFORMATION EFFECTS ON OPTICAL-SPECTRA OF QUANTUM-WELLS

Authors
SOSIN TP TRZECIAKOWSKI W
Citation
Tp. Sosin et W. Trzeciakowski, NEW METHOD FOR STUDYING BIAXIAL DEFORMATION EFFECTS ON OPTICAL-SPECTRA OF QUANTUM-WELLS, Acta Physica Polonica. A, 87(1), 1995, pp. 151-156
Citations number
3
Categorie Soggetti
Physics
Journal title
Acta Physica Polonica. A → ACNP
ISSN journal
05874246
Volume
87
Issue
1
Year of publication
1995
Pages
151 - 156
Database
ISI
SICI code
0587-4246(1995)87:1<151:NMFSBD>2.0.ZU;2-K
Abstract
The effects of large deformation were studied by preparing thin (20-30 mu m) membranes with quantum-well layers on top. A small gas pressure of a few bar deforms the membrane substantially and changes the optic al spectra of the quantum wells. We present the results of the photolu minescence and absorption from GaAs/AlGaAs and from InGaAs/GaAs quantu m wells subjected to tensile and to compressive biaxial strain. The li ght-hole lines shift more than two times faster than the heavy-hole li nes so that they cross under tensile strain.