Density dependence of the spectral dielectric function across a Fano resonance

被引：10
作者：
Marquezini, MV [1 ]
Kner, P
Bar-Ad, S
Tignon, J
Chemla, DS
机构：
[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA
来源：
PHYSICAL REVIEW B | 1998年 / 57卷 / 07期
关键词：
D O I：
10.1103/PhysRevB.57.3745
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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 the Fano model we measure the relative contributions of two, usually undistinguished, effects of the photocarriers: the screening of the inter-Landau-level Coulomb coupling, and the induced collisional broadening of the coupled discrete-state/continuum natural linewidth. [S0163-1829(95)07004-0].
引用
收藏
页码：3745 / 3748
页数：4
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