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Optics Letters

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  • Vol. 25, Iss. 8 — Apr. 15, 2000
  • pp: 572–574

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

V. Negoita, D. Hackworth, D. W. Snoke, and K. Eberl  »View Author Affiliations


Optics Letters, Vol. 25, Issue 8, pp. 572-574 (2000)
http://dx.doi.org/10.1364/OL.25.000572


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Abstract

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.

© 2000 Optical Society of America

OCIS Codes
(190.3100) Nonlinear optics : Instabilities and chaos
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter
(190.5970) Nonlinear optics : Semiconductor nonlinear optics including MQW
(270.1670) Quantum optics : Coherent optical effects
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence
(300.6470) Spectroscopy : Spectroscopy, semiconductors

Citation
V. Negoita, D. Hackworth, D. W. Snoke, and K. Eberl, "Subhertz spectral fluctuations from high-density excitons in coupled quantum wells," Opt. Lett. 25, 572-574 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-8-572


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