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Multiple time scale blinking in InAs quantum dot single-photon sources

Marcelo Davanço1,2,*, C. Stephen Hellberg3,†, Serkan Ates1,2, Antonio Badolato4, and Kartik Srinivasan1,‡

  • 1Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
  • 2Maryland NanoCenter, University of Maryland, College Park, Maryland 20742, USA
  • 3Center for Computational Materials Science, Code 6390, Naval Research Laboratory, Washington, DC 20375, USA
  • 4Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA

  • *marcelo.davanco@nist.gov
  • †steve.hellberg@nrl.navy.mil
  • ‡kartik.srinivasan@nist.gov
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Phys. Rev. B 89, 161303(R) – Published 16 April, 2014

DOI: https://doi.org/10.1103/PhysRevB.89.161303

Abstract

We use photon correlation measurements to study blinking in single, epitaxially grown self-assembled InAs quantum dots situated in circular Bragg grating and microdisk cavities. The normalized second-order correlation function g(2)(τ) is studied across 11 orders of magnitude in time, and shows signatures of blinking over time scales ranging from tens of nanoseconds to tens of milliseconds. The g(2)(τ) data is fit to a multilevel system rate equation model that includes multiple nonradiating (dark) states, from which radiative quantum yields significantly less than 1 are obtained. This behavior is observed even in situations for which a direct histogramming analysis of the emission time-trace data produces inconclusive results.

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Corrections

17 April, 2014

Erratum

Publisher's Note: Multiple time scale blinking in InAs quantum dot single-photon sources [Phys. Rev. B 89, 161303(R) (2014)]

Marcelo Davanço, C. Stephen Hellberg, Serkan Ates, Antonio Badolato, and Kartik Srinivasan
Phys. Rev. B 89, 159902 (2014)

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Phys. Rev. B 89, 161303(R)– Published 16 April, 2014
  • Received 3 June 2013
  • Revised 3 April 2014
  • Publisher error corrected 17 April 2014

©2014 American Physical Society

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