NONLINEAR ABSORPTION AND GAIN IN INGAAS GAAS QUANTUM-WELLS/

Authors
COLI G PASSASEO A GRECO D CINGOLANI R TAGLIAFERRI M DITRAPANI P ANDREONI A
Citation
G. Coli et al., NONLINEAR ABSORPTION AND GAIN IN INGAAS GAAS QUANTUM-WELLS/, Applied physics letters, 71(7), 1997, pp. 915-917
Citations number
10
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
71
Issue
7
Year of publication
1997
Pages
915 - 917
Database
ISI
SICI code
0003-6951(1997)71:7<915:NAAGII>2.0.ZU;2-M
Abstract
We present a detailed study of the excitonic nonlinearities in InGaAs/ GaAs multiple quantum wells based on both stationary and transient pum p-and-probe transmission spectroscopy. Bleaching of the excitonic reso nance and free carrier gain have been observed. A quantitative analysi s of the observed nonlinearity is provided by means of a rigorous solu tion of the Bethe-Salpeter equation for the investigated heterostructu res. (C) 1997 American Institute of Physics.