论文标题

低温干涉重力波检测器的分子层的光损失研究

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

论文作者

Tanioka, Satoshi, Hasegawa, Kunihiko, Aso, Yoichi

论文摘要

引力波的检测为我们提供了对宇宙的深刻见解。为了增加可检测到的重力波源的数量,几个未来的重力波检测器将用低温镜进行操作。然而,最近的研究表明,真空室内的残留气体分子粘附在低温镜面,并形成随时间生长的分子层。生长的分子层在镜像中引入了额外的光损失,可以降低检测器的性能。从理论上讲,我们在低温的重力波检测器中估计分子层的光损失。根据光损失估计的结果讨论了对低温引力波检测器的影响。

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 residual gas molecules inside the vacuum chamber adhere to the cryogenic mirror surface and form a molecular layer which grows with time. The 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 impacts on a cryogenic gravitational-wave detector is discussed based on the results of optical loss estimation.

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