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Published July 12, 2010 | Published
Journal Article Open

Linewidth broadening of a quantum dot coupled to an off-resonant cavity

Abstract

We study the coupling between a photonic crystal cavity and an off-resonant quantum dot under resonant excitation of the cavity or the quantum dot. Linewidths of the quantum dot and the cavity as a function of the excitation laser power are measured. We show that the linewidth of the quantum dot, measured by observing the cavity emission, is significantly broadened compared to the theoretical estimate. This indicates additional incoherent coupling between the quantum dot and the cavity.

Additional Information

© 2010 The American Physical Society. Received 23 February 2010; revised manuscript received 19 April 2010; published 12 July 2010. The authors acknowledge financial support provided by the National Science Foundation, Army Research Office, and Office of Naval Research. A.M. was supported by the Stanford Graduate Fellowship Texas Instruments fellowship.

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Published - PhysRevB.82.045306.pdf

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August 19, 2023
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