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

S. Reid, I.W. Martin, A. Cumming, L. Cunningham, M. M. Fejer, G. Hammond, A. Heptonstall, J. Hough, A. Markosyan, P. Murray, R. Route, S. Rowan, Kirill Tokmakov

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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.


Original languageEnglish
Number of pages11
JournalClassical and Quantum Gravity
Volume29
Issue number3
DOIs
Publication statusPublished - 2012

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Keywords

  • thermal noise
  • deposition
  • fused-silica
  • surface
  • electric charge
  • prototype
  • suspension
  • ligo
  • silica test mass
  • dependence

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