Mechanical Dissipation in Silicon Flexures

Authors

S. Reid, G. Cagnoli, D. R. M. Crooks, J. Hough, P. Murray, S. Rowan, M. M. Fejer, R. Route, S. Zappe

Abstract

The thermo-mechanical properties of silicon make it of significant interest as a possible material for mirror substrates and suspension elements for future long-baseline gravitational wave detectors. The mechanical dissipation in 92 µm thick ⟨110⟩ single-crystal silicon cantilevers has been observed over the temperature range 85 K to 300 K, with dissipation approaching levels down to φ = 4.4 × 10−7 .

Journal

Physics Letters A

Volume

351

Number

4

Date

03/2006
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