Cooling of a micro-mechanical oscillator using radiation pressure induced dynamical back-action

Details Cooling of a micro-mechanical oscillator using radiation pressure induced dynamical back-action Cooling of a micro-mechanical oscillator using radiation pressure induced dynamical back-action

2006-11-24

arxiv.org/abs/physics/0611235v2

Physics

Optics

accepted for publication (Phys. Rev. Lett.)

Scientific paper

Cooling of a 58 MHz micro-mechanical resonator from room temperature to 11 K is demonstrated using cavity enhanced radiation pressure. Detuned pumping of an optical resonance allows enhancement of the blue shifted motional sideband (caused by the oscillator's Brownian motion) with respect to the red-shifted sideband leading to cooling of the mechanical oscillator mode. The reported cooling mechanism is a manifestation of the effect of radiation pressure induced dynamical backaction. These results constitute an important step towards achieving ground state cooling of a mechanical oscillator.

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