シグマ光機(株)【7713】の掲示板 2017/10/04〜2018/09/20

重要な役割を担っているんですね。。。

ttps://www.nao.ac.jp/contents/about-naoj/reports/annual-report/en/2013/e_web_all.pdf

Recent rapid progresses on high-power laser require
‟high damage threshold” and ‟ultra-low loss” mirrors
for gravitational-wave detectors and various laser
experiments. There is no such mirror of which satisfy
both of requirements with the highest levels.
To realize it, coating qualities are being investigated
in collaboration with SIGMAKOKI CO., LTD. As a
result, we succeed to make the high-reflectivity mirror
of 99.99 % [1]