DENSITY-DEPENDENCE OF THE SPECTRAL DIELECTRIC FUNCTION ACROSS A FANO RESONANCE

Authors
MARQUEZINI MV KNER P BARAD S TIGNON J CHEMLA DS
Citation
Mv. Marquezini et al., DENSITY-DEPENDENCE OF THE SPECTRAL DIELECTRIC FUNCTION ACROSS A FANO RESONANCE, Physical review. B, Condensed matter, 57(7), 1998, pp. 3745-3748
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
57
Issue
7
Year of publication
1998
Pages
3745 - 3748
Database
ISI
SICI code
0163-1829(1998)57:7<3745:DOTSDF>2.0.ZU;2-B
Abstract
We study the effects of photocarrier density on a magnetically induced Fano resonance in GaAs, using a combined phase-amplitude transmission spectroscopy technique. By comparing our results to an extension of t he Fano model we measure the relative contributions of two, usually un distinguished, effects of the photocarriers: the screening of the inte r-Landau-level Coulomb coupling, and the induced collisional broadenin g of the coupled discrete-state/continuum natural linewidth. [S0163-18 29(95)07004-0].