Abstract

Diamond nanocrystals containing NV color centers are positioned with 100-nanometer-scale accuracy in the near-field of a high-Q SiO₂ microdisk cavity using a fiber taper. The cavity modified nanocrystal photoluminescence is studied, with Fano-like quantum interference features observed in the far-field emission spectrum. A quantum optical model of the system is proposed and fit to the measured spectra, from which the NV− zero phonon line coherent coupling rate to the microdisk is estimated to be 28 MHz for a nearly optimally placed nanocrystal.

© 2009 Optical Society of America

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History
Original Manuscript: February 4, 2009
Manuscript Accepted: April 20, 2009
Revised Manuscript: April 2, 2009
Published: April 29, 2009

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Author Affiliations

Paul E. Barclay, Oskar Painter

California Institute of Technology

Charles Santori, Kai-Mei Fu, Raymond G. Beausoleil

Hewlett-Packard Laboratories

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