We present a temperature enhanced photothermal cooling scheme in a micro-cantilever based FP cavity. Experiments at various temperatures show a temperature dependence of photothermal cooling efficiency. And approximate one order of improvement on the cooling efficiency is achieved experimentally when the temperature decreases from 298 K to 100 K. Numerical analysis reveals that the dramatic change of the cooling efficiency is attributed to the temperature dependent dynamics of the photothermal backaction. A high efficient cooling can be achieved by controlling the temperature for an optimized the dynamics of photothermal backaction.
@article{arxiv.1408.6056,
title = {Temperature enhanced photothermal cooling of a micro-cantilever},
author = {Hao Fu and Li-ping Ding and Tian-hua Mao and Gengyu Cao},
journal= {arXiv preprint arXiv:1408.6056},
year = {2014}
}