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

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Author(s): Marcelo I. Davanco; C S. Hellberg; Serkan Ates; Antonio Badolato; Kartik A. Srinivasan;
Title: Multiple-time-scale blinking in InAs quantum dot single photon sources
Published: April 16, 2014
Abstract: We use photon correlation measurements to study blinking in single, epitaxially-grown selfassembled InAs quantum dots situated in circular Bragg grating and microdisk cavities. The normalized second-order correlation function g(2)( t) is studied across eleven orders of magnitude in time, and shows blinking over timescales ranging from tens of nanoseconds to tens of milliseconds. These measurements reveal such behavior even in situations for which a direct histogramming analysis of the time-trace data produces inconclusive results. The g(2)(t) data is fit to a multiple dark state model from which the overall radiative efficiency of the quantum dot is estimated.
Citation: Physical Review B
Volume: 89
Issue: 16
Research Areas: Optics, Single Photon Sources
DOI: http://dx.doi.org/http://link.aps.org/doi/10.1103/PhysRevB.89.161303  (Note: May link to a non-U.S. Government webpage)
PDF version: PDF Document Click here to retrieve PDF version of paper (2MB)