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

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 mor...

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Published in:Nature communications 2014-12, Vol.5 (1), p.5718-5718, Article 5718
Main Authors: Burek, Michael J., Chu, Yiwen, Liddy, Madelaine S. Z., Patel, Parth, Rochman, Jake, Meesala, Srujan, Hong, Wooyoung, Quan, Qimin, Lukin, Mikhail D., Lončar, Marko
Format: Article
Language:English
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140/125
142/126
639/624/1075
639/624/399/1098
639/766/400/1021
Humanities and Social Sciences
multidisciplinary
Science
Science (multidisciplinary)
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Summary: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 10 5 , 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. Single-crystal diamond is a promising material for applications in classical and quantum optics, but the lack of scalable fabrication remains an issue. Here, Burek et al . adapt angle-etching nanofabrication techniques to realize ring resonators and photonic crystal cavities in single crystal diamond with quality factors in excess of 10 5 .
ISSN:2041-1723
2041-1723
DOI:10.1038/ncomms6718