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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 6 — Mar. 16, 2009
  • pp: 4509–4517

Revealing single emitter spectral dynamics from intensity correlations in an ensemble fluorescence spectrum

Xavier Brokmann, Lisa Marshall, and Moungi Bawendi  »View Author Affiliations

Optics Express, Vol. 17, Issue 6, pp. 4509-4517 (2009)

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We show that the single emitter linewidth underlying a broadened ensemble emission spectrum can be extracted from correlations among the stochastic intensity fluctuations in the ensemble spectrum. Spectral correlations can be observed at high temporal and spectral resolutions with a cross-correlated pair of avalanche photodiodes placed at the outputs of a scanning Michelson interferometer. As illustrated with simulations in conjunction with Fluorescence Correlation Spectroscopy, our approach overcomes ensemble and temporal inhomogeneous broadening to provide single emitter linewidths, even for emitters under weak, continuous, broadband excitation.

© 2009 Optical Society of America

OCIS Codes
(030.5290) Coherence and statistical optics : Photon statistics
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

ToC Category:
Coherence and Statistical Optics

Original Manuscript: January 27, 2009
Revised Manuscript: February 25, 2009
Manuscript Accepted: March 2, 2009
Published: March 5, 2009

Xavier Brokmann, Lisa F. Marshall, and Moungi G. Bawendi, "Revealing single emitter spectral dynamics from intensity correlations in an ensemble fluorescence spectrum.," Opt. Express 17, 4509-4517 (2009)

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