2ND-HARMONIC GENERATION IN STEPPED INASGAAS GAAS QUANTUM-WELLS/

Authors
DANDREA A TOMASSINI N FERRARI L RIGHINI M SELCI S BRUNI MR SCHIUMARINI D SIMEONE MG
Citation
A. Dandrea et al., 2ND-HARMONIC GENERATION IN STEPPED INASGAAS GAAS QUANTUM-WELLS/, Physica status solidi. a, Applied research, 164(1), 1997, pp. 383-386
Citations number
6
Journal title
Physica status solidi. a, Applied research → ACNP
ISSN journal
00318965
Volume
164
Issue
1
Year of publication
1997
Pages
383 - 386
Database
ISI
SICI code
0031-8965(1997)164:1<383:2GISIG>2.0.ZU;2-G
Abstract
A systematic study in stepped quantum wells of InxGa1-xAs/InyGa1-yAs/G aAs(001) with indium concentration x = 14.9% and y = 6.5% and thicknes ses in the range of quasi-two-dimensional behavior of Wannier excitons is performed. Experimental optical spectra are compared with model ca lculations. For well widths in the range of the pseudo-two-dimensional transition, where the oscillator strength of the exciton odd states i s maximized, a large second harmonic generation signal is experimental ly observed.