Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

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


Integrated quantum photonic technologies are key for future applications in quantum information1, (O'Brien et al. in Nature Photon. 3:687, 2009), ultralow-power opto-electronics (Mabuchi in Phys. Rev. A 80:045802, 2009) and sensing (Balasubramanian in Nature 455:648, 2008). 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 (Jelezko in Phys. Rev. Lett. 93:130501, 2004, Balasubramanian in Nature Mater. 8:383, 2009, Santori in Phys. Rev. Lett. 97:247401, 2006, Buckley et al. in Science 330:1212, 2010, Gurudev Dutt in Science 316:1312, 2007). 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 (Cabrillo et al. in Phys. Rev. A 59:1025, 1999, Childress et al. in Phys. Rev. A 72:052330, 2005, Togan in Nature 466:730, 2010). 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.

Your institute does not have access to this article

Relevant articles

Open Access articles citing this article.

Access options

Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.

Author information

Authors and Affiliations


Additional information

The online version of the original article can be found at 10.1038/nphoton.2011.63

The online version of the original article can be found at 10.1038/nphoton.2011.69

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Faraon, A., Barclay, P., Santori, C. et al. Resonant enhancement of the zero-phonon emission from a colour centre in a diamond cavity. Nature Photon 5, 301–305 (2011).

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI:

Further reading


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing