High quality-factor optical nanocavities in bulk single-crystal diamond

Michael J. Burek, Yiwen Chu, Madelaine S. Z. Liddy, Parth Patel, Jake Rochman, Srujan Meesala, Wooyoung Hong, Qimin Quan, Mikhail D. Lukin and Marko Lončar ()
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Michael J. Burek: School of Engineering and Applied Sciences, Harvard University
Yiwen Chu: Harvard University
Madelaine S. Z. Liddy: School of Engineering and Applied Sciences, Harvard University
Parth Patel: School of Engineering and Applied Sciences, Harvard University
Jake Rochman: School of Engineering and Applied Sciences, Harvard University
Srujan Meesala: School of Engineering and Applied Sciences, Harvard University
Wooyoung Hong: Harvard University
Qimin Quan: Rowland Institute at Harvard, Harvard University
Mikhail D. Lukin: Harvard University
Marko Lončar: School of Engineering and Applied Sciences, Harvard University

Nature Communications, 2014, vol. 5, issue 1, 1-7

Abstract: Abstract Single-crystal diamond, with its unique optical, mechanical and thermal properties, has emerged as a promising material with applications in classical and quantum optics. However, the lack of heteroepitaxial growth and scalable fabrication techniques remains the major limiting factors preventing more wide-spread development and application of diamond photonics. In this work, we overcome this difficulty by adapting angled-etching techniques, previously developed for realization of diamond nanomechanical resonators, to fabricate racetrack resonators and photonic crystal cavities in bulk single-crystal diamond. Our devices feature large optical quality factors, in excess of 105, and operate over a wide wavelength range, spanning visible and telecom. These newly developed high-Q diamond optical nanocavities open the door for a wealth of applications, ranging from nonlinear optics and chemical sensing, to quantum information processing and cavity optomechanics.

Date: 2014
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DOI: 10.1038/ncomms6718

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