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Published May 2011 | public
Journal Article

Resonant enhancement of the zero-phonon emission from a colour centre in a diamond cavity

Abstract

Integrated quantum photonic technologies are key for future applications in quantum information, ultralow-power opto-electronics and sensing. As individual quantum bits, nitrogen-vacancy centres in diamond are among the most promising solid-state systems identified to date, because of their long-lived electron and nuclear spin coherence, and capability for individual optical initialization, readout and information storage. The major outstanding hurdle lies in interconnecting many nitrogen vacancies for large-scale computation. One of the most promising approaches in this regard is to couple them to optical resonators, which can be further interconnected in a photonic network. Here, we demonstrate coupling of the zero-phonon line of individual nitrogen vacancies to the modes of microring resonators fabricated in single-crystal diamond. Zero-phonon line enhancement by more than a factor of 10 is estimated from lifetime measurements. The devices are fabricated using standard semiconductor techniques and off-the-shelf materials, thus enabling integrated diamond photonics.

Additional Information

© 2011 Macmillan Publishers Limited. Received 12 December 2010; Accepted 16 March 2011; Published online 24 April 2011. This material is based on work supported by the Defense Advanced Research Projects Agency (award no. HR0011-09-1-0006) and The Regents of the University of California. The authors declare no competing financial interests.

Additional details

Created:
August 22, 2023
Modified:
October 19, 2023