Abstract
We report on low-frequency measurements of the mechanical loss of a high-quality (transmissivity at , absorption loss ) multilayer dielectric coating of ion-beam-sputtered fused silica and titanium-doped tantala in the 10–300 K temperature range. A useful parameter for the computation of coating thermal noise on different substrates is derived as a function of temperature and frequency.
© 2013 Optical Society of America
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