Single-Crystal Diamond Nanobeam Waveguide Optomechanics

Behzad Khanaliloo, Harishankar Jayakumar, Aaron C. Hryciw, David P. Lake, Hamidreza Kaviani, Paul E. Barclay

Research output: Contribution to journalArticlepeer-review

93 Scopus citations


Single-crystal diamond optomechanical devices have the potential to enable fundamental studies and technologies coupling mechanical vibrations to both light and electronic quantum systems. Here, we demonstrate a single-crystal diamond optomechanical system and show that it allows excitation of diamond mechanical resonances into self-oscillations with amplitude >200 nm. The resulting internal stress field is predicted to allow driving of electron spin transitions of diamond nitrogen-vacancy centers. The mechanical resonances have a quality factor >7 × 105 and can be tuned via nonlinear frequency renormalization, while the optomechanical interface has a 150 nm bandwidth and 9.5 fm=pffiffiffiffiffiffi Hz sensitivity. In combination, these features make this system a promising platform for interfacing light, nanomechanics, and electron spins.

Original languageEnglish (US)
Article number041051
JournalPhysical Review X
Issue number4
StatePublished - 2015
Externally publishedYes

Bibliographical note

Funding Information:
We thank Charles Santori and David Fattal for useful initial discussions related to the fabrication approach used here. We would like to acknowledge support for this work from NSERC, iCore/AITF, CFI, NRC.


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