Frequency and surface dependence of the mechanical loss in fused silica

(2) Syracuse University; (3) California Institute of Technology; (4) Massachusetts Institute of Technology; (5) LIGO Livingston Observatory; (6) NASA/Goddard Space Flight Center); Alexander Ageev (2); Andri M. Gretarsson (5); Dan Busby (3); Gregory M. Harry (4); Kenji Numata (6)

arxiv: gr-qc/0507097 · v1 · pith:I3SMX4SOnew · submitted 2005-07-23 · 🌀 gr-qc

Frequency and surface dependence of the mechanical loss in fused silica

Steven D. Penn (1) , Alexander Ageev (2) , Dan Busby (3) , Gregory M. Harry (4) , Andri M. Gretarsson (5) , Kenji Numata (6) , Phil Willems (3) ((1) Hobart , William Smith Colleges

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(2) Syracuse University (3) California Institute of Technology (4) Massachusetts Institute of Technology (5) LIGO Livingston Observatory (6) NASA/Goddard Space Flight Center)

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keywords lossfrequencymechanicalfusedsilicaadvancedcompiledcontributed

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We have compiled measurements of the mechanical loss in fused silica from samples spanning a wide range of geometries and resonant frequency in order to model the known variation of the loss with frequency and surface-to-volume ratio. This improved understanding of the mechanical loss has contributed significantly to the design of advanced interferometric gravitational wave detectors, which require ultra-low loss materials for their test mass mirrors.

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Frequency and surface dependence of the mechanical loss in fused silica

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