It is shown that an optical parametric amplifier inside a cavity can considerably improve the cooling of the micromechanical mirror by radiation pressure. The micromechanical mirror can be cooled from room temperature 300 K to sub-Kelvin temperatures, which is much lower than what is achievable in the absence of the parametric amplifier. Further if in case of a precooled mirror one can reach millikelvin temperatures starting with about 1 K. Our work demonstrates the fundamental dependence of radiation pressure effects on photon statistics.
@article{arxiv.0810.2589,
title = {Enhancement of Cavity Cooling of a Micromechanical Mirror Using Parametric Interactions},
author = {Sumei Huang and G. S. Agarwal},
journal= {arXiv preprint arXiv:0810.2589},
year = {2009}
}