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Dynamical Backaction of Microwave Fields on a Nanomechanical Oscillator

Teufel, J. D. and Harlow, J. W. and Regal, C. A. and Lehnert, K. W. (2008) Dynamical Backaction of Microwave Fields on a Nanomechanical Oscillator. Physical Review Letters, 101 (19). Art. No. 197203. ISSN 0031-9007. https://resolver.caltech.edu/CaltechAUTHORS:TEUprl08

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Abstract

We measure the response and thermal motion of a high-Q nanomechanical oscillator coupled to a superconducting microwave cavity in the resolved-sideband regime where the oscillator's resonance frequency exceeds the cavity's linewidth. The coupling between the microwave field and mechanical motion is strong enough for radiation pressure to overwhelm the intrinsic mechanical damping. This radiation-pressure damping cools the fundamental mechanical mode by a factor of 5 below the thermal equilibrium temperature in a dilution refrigerator to a phonon occupancy of 140 quanta.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevLett.101.197203DOIUNSPECIFIED
http://link.aps.org/abstract/PRL/v101/e197203PublisherUNSPECIFIED
Additional Information:© 2008 The American Physical Society. (Received 18 July 2008; published 3 November 2008) The authors acknowledge funding from the National Institute of Standards and Technology (NIST) and from the National Science Foundation. We thank M.A. Castellanos-Beltran and N.E. Flowers-Jacobs for discussions and technical assistance.
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Funding AgencyGrant Number
National Institute of Standards and TechnologyUNSPECIFIED
National Science FoundationUNSPECIFIED
Issue or Number:19
Record Number:CaltechAUTHORS:TEUprl08
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:TEUprl08
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:12324
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:11 Nov 2008 19:19
Last Modified:03 Oct 2019 00:27

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