Near-Infrared Scanning Cavity Ringdown for Optical Loss Characterization of Supermirrors
Instrumentation and Detectors
2019-07-24 v2
Abstract
A cavity ringdown system for probing the spatial variation of optical loss across high-reflectivity mirrors is described. This system is employed to examine substrate-transferred crystalline supermirrors and quantify the effect of manufacturing process imperfections. Excellent agreement is observed between the ringdown-generated spatial measurements and differential interference contrast microscopy images. A 2 mm diameter ringdown scan in the center of a crystalline supermirror reveals highly uniform coating properties with excess loss variations below 1 ppm.
Cite
@article{arxiv.1903.09665,
title = {Near-Infrared Scanning Cavity Ringdown for Optical Loss Characterization of Supermirrors},
author = {Gar-Wing Truong and Georg Winkler and Tobias Zederbauer and Dominic Bachmann and Paula Heu and David Follman and Mark White and Oliver Heckl and Garrett Cole},
journal= {arXiv preprint arXiv:1903.09665},
year = {2019}
}