Photoluminescence polarization anisotropy in quasi-planar sidewall quantumwires on GaAs (311)A

Authors
Santos, PV Schonherr, HP Notzel, R Ploog, KH
Citation
Pv. Santos et al., Photoluminescence polarization anisotropy in quasi-planar sidewall quantumwires on GaAs (311)A, PHYS ST S-A, 175(1), 1999, pp. 33-37
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH
ISSN journal
00318965 → ACNP
Volume
175
Issue
1
Year of publication
1999
Pages
33 - 37
Database
ISI
SICI code
0031-8965(19990916)175:1<33:PPAIQS>2.0.ZU;2-J
Abstract
We investigate the polarization anisotropy of the excitonic photoluminescen ce (PL) of quantum wells (QWs) and of [0(1) over bar 1]-oriented sidewall q uantum wires (QWRs) grown on (311) GaAs substrates. We demonstrate that ver tical (i.e., along [311]) and lateral (along [<(2)over bar 33>]) confinemen ts in these QWRs yield contributions of opposite signs to the PL anisotropy . The anisotropy of the QWRs initially reduces and then changes sign with d ecreasing wire widths.