1.
Opt Lett
; 25(8): 572-4, 2000 Apr 15.
Artigo
em Inglês
| MEDLINE
| ID: mdl-18064115
RESUMO
In 1994 Butov et 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. We 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.