Optomechanics in an ultrahigh-Q two-dimensional photonic crystal cavity
Abstract
We demonstrate an ultrahigh-Q slotted two-dimensional photonic crystal cavity capable of obtaining strong interaction between the internal light field and the mechanical motion of the slotted structure. The measured optical quality factor is Q = 1.2×10^6 for a cavity with an effective modal volume of V_(eff) = 0.04(λ)^3. Optical transduction of the thermal motion of the fundamental in-plane mechanical resonance of the structure (ν_m = 151 MHz) is performed, from which a zero-point motion optomechanical coupling rate of g∗/2π = 320 kHz is inferred. Dynamical back-action of the optical field on the mechanical motion, resulting in cooling and amplication of the mechanical motion, is also demonstrated.
Additional Information
© 2010 American Institute of Physics. Received 20 June 2010; accepted 8 October 2010; published online 4 November 2010. A.S.N. and T.P.M.A. contributed equally to this work. This work was supported by the DARPA/MTO ORCHID program through a grant from AFOSR, and the Kavli Nanoscience Institute at Caltech. A.S.N. gratefully acknowledges support from NSERC.Attached Files
Published - SafaviNaeini2010p12073Appl_Phys_Lett.pdf
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Additional details
- Eprint ID
- 21294
- Resolver ID
- CaltechAUTHORS:20101210-113124009
- Defense Advanced Research Projects Agency (DARPA)
- Air Force Office of Scientific Research (AFOSR)
- Kavli Nanoscience Institute
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Created
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2010-12-13Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Kavli Nanoscience Institute