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The mechanical loss of tin (II) oxide thin-film coatings for charge mitigation in future gravitational wave detectors

Reid, S. and Martin, I.W. and Cumming, A. and Cunningham, L. and Fejer, M. M. and Hammond, G. and Heptonstall, A. and Hough, J. and Markosyan, A. and Murray, P. and Route, R. and Rowan, S. and Tokmakov, Kirill (2012) The mechanical loss of tin (II) oxide thin-film coatings for charge mitigation in future gravitational wave detectors. Classical and Quantum Gravity, 29 (3). ISSN 0264-9381

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Abstract

Electrostatic charging of the mirrors and suspensions in interferometric gravitational wave detectors may compromise aspects of both the sensitivity and control of current and planned instruments. The use of conductive coatings of tin (II) oxide as a possible charge mitigation technique is investigated here, where we report measurements of the optical loss and mechanical loss for the first time at frequencies of interest for gravitational wave detection.