Optomechanical trapping and cooling of partially reflective mirrors

M. Bhattacharya, H. Uys, P. Meystre

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166 Scopus citations


We consider the radiative trapping and cooling of a partially reflecting mirror suspended inside an optical cavity, generalizing the case of a perfectly reflecting mirror previously considered. This configuration was recently used in an experiment to cool a nanometers-thick dielectric membrane. The self-consistent cavity field modes of this system depend strongly on the position of the middle mirror, leading to important qualitative differences in the radiation pressure effects: in one case, the situation is similar to that of a perfectly reflecting middle mirror, with only minor quantitative modifications. In addition, we also identify a range of mirror positions for which the radiation-mirror-coupling becomes purely dispersive and the back-action effects that usually lead to cooling are absent, although the mirror can still be optically trapped. The existence of these two regimes leads us to propose a bichromatic scheme that optimizes the cooling and trapping of partially reflective mirrors.

Original languageEnglish (US)
Article number033819
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
StatePublished - Mar 7 2008

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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