Reflective coating optimization for interferometric detectors of gravitational waves

被引：13

作者：

Principe, Maria ^{[1
,2
]}

机构：

[1] Univ Sannio Benevento, Ist Nazl Fis Nucl, LVC, Benevento, Italy

[2] KAGRA, Tokyo, Japan

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 09期

关键词：

THERMAL NOISE; BEAM; CRYSTALLIZATION;

D O I：

10.1364/OE.23.010938

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Brownian fluctuations in the highly reflective test-mass coatings are the dominant noise source, in a frequency band from a few tens to a few hundreds Hz, for Earth-bound detectors of Gravitational Waves. Minimizing such noise is mandatory to increase the visibility distance of these instruments, and eventually reach their quantum-limited sensitivity. Several strategies exist to achieve this goal. Layer thickness and material properties optimization have been proposed and effectively implemented, and are reviewed in this paper, together with other, so far less well developed, options. The former is the simplest option, yielding a sensible noise reduction with limited technological challenges; the latter is more technologically demanding, but is needed for future (cryogenic) detectors. (C) 2015 Optical Society of America

引用

页码：10938 / 10956

页数：19

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