Optomechanical feedback cooling of a 5 mm-long torsional mode
Optics
2023-01-26 v1 Instrumentation and Detectors
Abstract
We report three orders of magnitude optical cooling of the fundamental torsional mode of a 5 mm-long, 550 nm diameter optical nanofiber. The rotation of the nanofiber couples to the polarization of guided laser fields. We use a weak laser probe to monitor the rotation, and use feedback to modulate the polarization of an auxiliary drive laser providing torque. Our results present a tool for the optomechanical control of large-scale torsional resonators, with metrological applications and potential implications for studying macroscopic objects in quantum states.
Keywords
Cite
@article{arxiv.2301.10554,
title = {Optomechanical feedback cooling of a 5 mm-long torsional mode},
author = {Dianqiang Su and Yuan Jiang and Pablo Solano and Luis A. Orozco and John Lawall and Yanting Zhao},
journal= {arXiv preprint arXiv:2301.10554},
year = {2023}
}