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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 9 — May. 1, 2013
  • pp: 1413–1415

Quantum-enhanced micromechanical displacement sensitivity

Ulrich B. Hoff, Glen I. Harris, Lars S. Madsen, Hugo Kerdoncuff, Mikael Lassen, Bo M. Nielsen, Warwick P. Bowen, and Ulrik L. Andersen  »View Author Affiliations


Optics Letters, Vol. 38, Issue 9, pp. 1413-1415 (2013)
http://dx.doi.org/10.1364/OL.38.001413


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Abstract

We report on a hitherto unexplored application of squeezed light: for quantum-enhancement of mechanical transduction sensitivity in microcavity optomechanics. Using a toroidal silica microcavity, we experimentally demonstrate measurement of the transduced phase modulation signal in the frequency range 4–5.8 MHz with a sensitivity 0.72(±0.01)dB below the shot noise level. This is achieved for resonant probing in the highly undercoupled regime, by preparing the probe in a weak coherent state with phase squeezed vacuum states at sideband frequencies.

© 2013 Optical Society of America

OCIS Codes
(120.2920) Instrumentation, measurement, and metrology : Homodyning
(270.6570) Quantum optics : Squeezed states
(140.3945) Lasers and laser optics : Microcavities
(120.4880) Instrumentation, measurement, and metrology : Optomechanics

ToC Category:
Quantum Optics

History
Original Manuscript: January 29, 2013
Revised Manuscript: March 13, 2013
Manuscript Accepted: March 22, 2013
Published: April 24, 2013

Citation
Ulrich B. Hoff, Glen I. Harris, Lars S. Madsen, Hugo Kerdoncuff, Mikael Lassen, Bo M. Nielsen, Warwick P. Bowen, and Ulrik L. Andersen, "Quantum-enhanced micromechanical displacement sensitivity," Opt. Lett. 38, 1413-1415 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-9-1413


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