Cryogenic contamination of an ultra-low loss mirror for cryogenic laser interferometric gravitational wave detector

Authors
Miyoki, S Uchiyama, T Tomaru, T Tatsumi, D Ishizuka, H Ohashi, M Kuroda, K Ueda, A Suzuki, T Sato, N Haruyama, T Yamamoto, A Shintomi, T
Citation
S. Miyoki et al., Cryogenic contamination of an ultra-low loss mirror for cryogenic laser interferometric gravitational wave detector, CRYOGENICS, 40(1), 2000, pp. 61-66
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Mechanical Engineering
Journal title
CRYOGENICS
ISSN journal
00112275 → ACNP
Volume
40
Issue
1
Year of publication
2000
Pages
61 - 66
Database
ISI
SICI code
0011-2275(200001)40:1<61:CCOAUL>2.0.ZU;2-N
Abstract
The reflectance of ultra-low loss dielectric multilayer coating mirrors coo led at 10 K was monitored as the finesse of a Fabry-Perot cavity consisting of them for one month. Their reflectances remained approximately constant within +/-5 ppm. The contaminated reflectance due to the cryogenic molecule absorption was investigated to be recovered without any serious damage on their coating surface. This result suggests utilization of the cryogenic mi rror is likely for the interferometric gravitational wave detector. (C) 200 0 Elsevier Science Ltd. All rights reserved.