Abstract.
We show that a single-port optical cavity with a movable mirror can provide a quantum non-demolition measurement of the intensity of a light beam. Due to radiation pressure, the cavity length is sensitive to the light intensity and can be measured with a secondary light beam. Signal-meter correlations can be made very large even at non-zero temperature. We study these correlations when the moving mirror is a plane–convex crystal resonator and we show the importance of spatial matching between light and acoustic modes.
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Received: 12 June 1996/Revised version: 3 September 1996
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Heidmann, A., Hadjar, Y. & Pinard, M. Quantum nondemolition measurement by optomechanical coupling. Appl Phys B 64, 173–180 (1997). https://doi.org/10.1007/s003400050162
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DOI: https://doi.org/10.1007/s003400050162