Strong coherent gain from semiconductor microcavities in the regime of excitonic saturation

Authors
Quochi, F Ciuti, C Bongiovanni, G Mura, A Saba, M Oesterle, U Dupertuis, MA Staehli, JL Deveaud, B
Citation
F. Quochi et al., Strong coherent gain from semiconductor microcavities in the regime of excitonic saturation, PHYS REV B, 59(24), 1999, pp. R15594-R15597
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
59
Issue
24
Year of publication
1999
Pages
R15594 - R15597
Database
ISI
SICI code
0163-1829(19990615)59:24<R15594:SCGFSM>2.0.ZU;2-C
Abstract
We present femtosecond gain measurements in microcavity-embedded quantum we lls. When the excitonic transition is saturated by an intense pump field, t he spectrum measured with a weak probe pulse is strongly modulated by pump- probe wave mixing processes. A giant probe amplification occurs within the bandwidth of the empty-cavity mode. The optical feedback provided by the mi crocavity is responsible for a net gain of the broadband probe pulse. [S016 3-1829(99)50424-4].