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Quantum and Semiclassical Optics Journal of the European Optical Society Part B

Variation of phase space contour by radiation pressure in a cavity with movable mirror

Stefano Mancini, P. Tombesi

Published Feb 1, 1995• 2 citations
Publisher

Abstract

In this paper we show how the light impinging on a linear Fabry-Perot cavity with an oscillating end mirror changes its error contour shape. The analysis is performed by the phase space method considering the coupling with the external world. We also take into account the case of squeezed light in input concluding that the device is able to enhance the squeezing and convert phase squeezing into amplitude squeezing, but not vice versa.

DOI
10.1088/1355-5111/7/1/004

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In this paper we show how the light impinging on a linear Fabry-Perot cavity with an oscillating end mirror changes its error contour shape. The analysis is performed by the phase space method considering the coupling with the external world. We also take into account the case of squeezed light in input concluding that the device is able to enhance the squeezing and convert phase squeezing into amplitude squeezing, but not vice versa.
The inhibition of atomic phase decays by squeezed light, as first predicted by Gardiner [Phys. Rev. Lett. 56, 1917 (1986)], has yet to be confirmed experimentally. A major obstacle to such an experiment is the production of an effective squeezed-vacuum--atom coupling, so that the atom interacts only with squeezed modes of the radiation field. In this paper we propose the use of a microscopic plane-mirror Fabry-P\'erot cavity to effect a strong selection of modes coupling to the atom. It is shown that a significant reduction in fluctuations experienced by the atom can be achieved in one quadrature, with an input squeezed beam of modest angular dimensions, provided that the phase (and to lesser extent the amplitude) characteristics of the input beam are suitably matched to the cavity.