Laser spot position dependent photothermal mode cooling of a micro-cantilever
Optics
2015-05-28 v1
Abstract
We explore the laser spot position (LSP) dependent photothermal mode cooling of a micro-cantilever in a Fabry-P\'erot (FP) cavity. Depending on the LSP along the lever, photothermal coupling to the first two mechanical modes can be either parallel or anti-parallel. This LSP dependent behavior is analyzed theoretically by a simple model, which is in quantitatively agreement with our experimental observation. From simulation, the parallel and anti-parallel coupling region is identified along the lever. We conclude that a more efficient mode cooling may be achieved in the parallel coupling region.
Keywords
Cite
@article{arxiv.1107.0542,
title = {Laser spot position dependent photothermal mode cooling of a micro-cantilever},
author = {Hao Fu and Cunding Liu and Yong Liu and Jiaru Chu and Gengyu Cao},
journal= {arXiv preprint arXiv:1107.0542},
year = {2015}
}
Comments
4 pages, 4 figures