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

被引：7

作者：

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

机构：

[1] Univ Tokyo, Inst Cosm Ray Res, Tanashi, Tokyo 1888502, Japan

[2] Natl Astron Observ, Tokyo 1818588, Japan

[3] High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

来源：

CRYOGENICS | 2000年 / 40卷 / 01期

关键词：

interferometric gravitational wave detector; cryogenic contamination; ultra-low loss dielectric multilayer coating mirror; reflectance; finesse;

D O I：

10.1016/S0011-2275(00)00011-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The reflectance of ultra-low loss dielectric multilayer coating mirrors cooled 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 mirror is likely for the interferometric gravitational wave detector. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：61 / 66

页数：6

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