Optical loss study of molecular layer for a cryogenic interferometric gravitational-wave detector

被引：9

作者：

Tanioka, Satoshi ^{[1
,2
]}

Hasegawa, Kunihiko ^{[3
]}

Aso, Yoichi ^{[1
,2
]}

机构：

[1] Grad Univ Adv Studies SOKENDAI, Mitaka, Tokyo 1818588, Japan

[2] Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

[3] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan

来源：

PHYSICAL REVIEW D | 2020年 / 102卷 / 02期

关键词：

SILICON; NOISE;

D O I：

10.1103/PhysRevD.102.022009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The detection of gravitational waves provides us with a deep insight into the Universe. In order to increase the number of detectable gravitational-wave sources, several future gravitational-wave detectors will operate with cryogenic mirrors. Recent studies, however, showed that residual gas molecules inside the vacuum chamber adhere to the cryogenic mirror surface and form a molecular layer which grows with time. This growing molecular layer introduces an additional optical loss in the mirror which can decrease the detector's performance. We theoretically estimate the optical loss by the molecular layer in a cryogenically operated gravitational-wave detector. The impact on a cryogenic gravitational-wave detector is discussed based on the results of the optical loss estimation.

引用

页数：9

共 37 条

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