Large-scale inhomogeneity in sapphire test masses revealed by Rayleigh scattering imaging

Z. Yan; Li Ju; F. Eon; Slawomir Gras; C. Zhao; J.S. Jacob; David Blair; Carlo Bradaschia

doi:10.1088/0264-9381/21/5/112

Large-scale inhomogeneity in sapphire test masses revealed by Rayleigh scattering imaging

Z. Yan, Li Ju, F. Eon, Slawomir Gras, C. Zhao, J.S. Jacob, David Blair, Carlo Bradaschia (Editor)

Research output: Contribution to journal › Article › peer-review

9 Citations (Web of Science)

Abstract

Rayleigh scattering in test masses can introduce noise and reduce the sensitivity of laser interferometric gravitational wave detectors. In this paper, we present laser Rayleigh scattering imaging as a technique to investigate sapphire test masses. The system provides three-dimensional Rayleigh scattering mapping of entire test masses and quantitative evaluation of the Rayleigh scattering coefficient. Rayleigh scattering mapping of two sapphire samples reveals point defects as well as inhomogeneous structures in the samples. We present results showing significant non-uniforin scattering within two 4.5 kg sapphire test masses manufactured by the heat exchanger method.

Original language	English
Pages (from-to)	S1139-S1144
Journal	Classical and Quantum Gravity
Volume	21
Issue number	5
DOIs	https://doi.org/10.1088/0264-9381/21/5/112
Publication status	Published - 2004

Access to Document

10.1088/0264-9381/21/5/112

Cite this

@article{ec887db1ffc34280b517d509d9ea4d62,

title = "Large-scale inhomogeneity in sapphire test masses revealed by Rayleigh scattering imaging",

abstract = "Rayleigh scattering in test masses can introduce noise and reduce the sensitivity of laser interferometric gravitational wave detectors. In this paper, we present laser Rayleigh scattering imaging as a technique to investigate sapphire test masses. The system provides three-dimensional Rayleigh scattering mapping of entire test masses and quantitative evaluation of the Rayleigh scattering coefficient. Rayleigh scattering mapping of two sapphire samples reveals point defects as well as inhomogeneous structures in the samples. We present results showing significant non-uniforin scattering within two 4.5 kg sapphire test masses manufactured by the heat exchanger method.",

author = "Z. Yan and Li Ju and F. Eon and Slawomir Gras and C. Zhao and J.S. Jacob and David Blair and Carlo Bradaschia",

year = "2004",

doi = "10.1088/0264-9381/21/5/112",

language = "English",

volume = "21",

pages = "S1139--S1144",

journal = "Classical and Quantum Gravity",

issn = "0264-9381",

publisher = "IOP Publishing",

number = "5",

}

TY - JOUR

T1 - Large-scale inhomogeneity in sapphire test masses revealed by Rayleigh scattering imaging

AU - Yan, Z.

AU - Ju, Li

AU - Eon, F.

AU - Gras, Slawomir

AU - Zhao, C.

AU - Jacob, J.S.

AU - Blair, David

A2 - Bradaschia, Carlo

PY - 2004

Y1 - 2004

N2 - Rayleigh scattering in test masses can introduce noise and reduce the sensitivity of laser interferometric gravitational wave detectors. In this paper, we present laser Rayleigh scattering imaging as a technique to investigate sapphire test masses. The system provides three-dimensional Rayleigh scattering mapping of entire test masses and quantitative evaluation of the Rayleigh scattering coefficient. Rayleigh scattering mapping of two sapphire samples reveals point defects as well as inhomogeneous structures in the samples. We present results showing significant non-uniforin scattering within two 4.5 kg sapphire test masses manufactured by the heat exchanger method.

AB - Rayleigh scattering in test masses can introduce noise and reduce the sensitivity of laser interferometric gravitational wave detectors. In this paper, we present laser Rayleigh scattering imaging as a technique to investigate sapphire test masses. The system provides three-dimensional Rayleigh scattering mapping of entire test masses and quantitative evaluation of the Rayleigh scattering coefficient. Rayleigh scattering mapping of two sapphire samples reveals point defects as well as inhomogeneous structures in the samples. We present results showing significant non-uniforin scattering within two 4.5 kg sapphire test masses manufactured by the heat exchanger method.

U2 - 10.1088/0264-9381/21/5/112

DO - 10.1088/0264-9381/21/5/112

M3 - Article

SN - 0264-9381

VL - 21

SP - S1139-S1144

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

IS - 5

ER -

Large-scale inhomogeneity in sapphire test masses revealed by Rayleigh scattering imaging

Abstract

Access to Document

Fingerprint

Cite this