Experimental measurements of coating mechanical loss factors

被引：57

作者：

Crooks, DRM ^{[1
]}

Cagnoli, G

Fejer, MM

Gretarsson, A

Harry, G

Hough, J

Nakagawa, N

Penn, S

Route, R

Rowan, S

Sneddon, PH

机构：

[1] Univ Glasgow, Dept Phys & Astron, Inst Gravitat Res, Glasgow G12 8QQ, Lanark, Scotland

[2] Stanford Univ, Edward L Ginzton Lab, Stanford, CA 94305 USA

[3] LIGO Livingston Observ, Livingston, LA 70754 USA

[4] MIT, LIGO Lab, Cambridge, MA 02139 USA

[5] Iowa State Univ Sci & Technol, Inst Phys Res & Technol, Ctr Nondestruct Evaluat, Ames, IA 50011 USA

[6] Hobart & William Smith Coll, Dept Phys, Geneva, NY 14456 USA

来源：

CLASSICAL AND QUANTUM GRAVITY | 2004年 / 21卷 / 05期

关键词：

D O I：

10.1088/0264-9381/21/5/101

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

All current gravitational wave detectors use test masses coated with alternating layers of two different dielectric materials to form highly reflective mirrors. The thermal noise from mechanical dissipation associated with such coatings may be significant for future detectors such as advanced LIGO. We have measured the mechanical dissipation of a number of types of coatings formed from SiO2 (silica) and Ta2O5 (tantala). The frequency dependence of the dissipation has been determined, taking into account the contribution of thermoelastic loss.

引用

页码：S1059 / S1065

页数：7

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