Abstract

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

» View Full Text: Acrobat PDF (552 KB) 

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

References

1. L. Mandel and E. Wolf, Optical Coherence and Quantum Optics (Cambridge Univeristy Press, 1995).
2. V. S. Zapasskii and G. G. Kozlov, "Correlation analysis of spectral fluctuations in inhomogeneously broadened spectra," Opt. Express 8, 509-516 (2001).
3. F. Intonti, V. Emiliani, C. Lienau, Th. Elsaesser, V. Savona, E. Runge, R. Zimmermann, R. Notzel, and K. H. Ploog, "Quantum mechanical repulsion of exciton levels in a disordered quantum well," Phys. Rev. Lett. 27, 0768011-4 (2001).
4. G. von Freymann, U. Neuberth, M. Deubel, M. Wegener, G. Khitrova, and H. M. Gibbs, "Level repulsion in nanophotoluminescence spectra from single GaAs quantum wells," Phys. Rev. B 65, 2053271-9 (2002). [CrossRef]
5. X. Brokmann, M. G. Bawendi, L. Coolen, and J. P. Hermier, "Photon-correlation Fourier spectroscopy," Opt. Express 14, 6333-6341 (2006). [CrossRef]
6. D. Magde, E. L. Elson, and W. W. Webb, "Fluorescence Correlation Spectroscopy 2. Experimental Realization," Biopolymers 33, 29-61 (1974). [CrossRef]

Author Affiliations

Xavier Brokmann

Capital Fund Management

Lisa F. Marshall, Moungi G. Bawendi

Massachusetts Institute of Technology

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Advanced Search

Recent ToC Categories (Beta)