Subhertz spectral fluctuations from high-density excitons in coupled quantum wells

被引:9
|
作者
Negoita, V
Hackworth, D
Snoke, DW
Eberl, K
机构
[1] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA
[2] Max Planck Inst Festkorperforsch, D-70506 Stuttgart, Germany
关键词
D O I
10.1364/OL.25.000572
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In 1994 Butov ct al. [Phys. Rev. Lett. 73, 304 (1994)] reported large, extremely low-frequency fluctuations in the luminescence intensity from indirect excitons in a coupled quantum well. Sire have reproduced these fluctuations in a similar structure. Our observations indicate, however, that, the fluctuations are spectral fluctuations rather than intensity fluctuations. We have eliminated several possible causes for the fluctuations and propose a possible cause. (C) 2000 Optical Society of America. OCIS codes: 300.6280, 300.6470, 190.3100, 190.4720, 190.5970, 270.1670.
引用
收藏
页码:572 / 574
页数:3
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