Titania-doped tantala/silica coatings for gravitational-wave detection

Harry, G.M. et al. (2007) Titania-doped tantala/silica coatings for gravitational-wave detection. Classical and Quantum Gravity, 24(2), pp. 405-415. (doi: 10.1088/0264-9381/24/2/008)

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Reducing thermal noise from optical coatings is crucial to reaching the required sensitivity in next generation interferometric gravitational-wave detectors. Here we show that adding TiO2 to Ta2O5 in Ta2O5/SiO2 coatings reduces the internal friction and in addition present data confirming it reduces thermal noise. We also show that TiO2-doped Ta2O5/SiO2 coatings are close to satisfying the optical absorption requirements of second generation gravitational-wave detectors.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Cagnoli, Dr Gianpietro and Rowan, Professor Sheila and MacLaren, Dr Ian and Crooks, Dr David and Hough, Professor James and Sneddon, Dr Peter and Murray, Dr Peter
Authors: Harry, G.M., Abernathy, M.R., Becerra-Toledo, A.E., Armandula, H., Black, E., Dooley, K., Eichenfield, M., Nwabugwu, C., Villar, A., Crooks, D., Cagnoli, G., Hough, J., How, C.R., MacLaren, I., Murray, P., Reid, S., Rowan, S., Sneddon, P.H., Fejer, M.M., Route, R., Penn, S.D., Ganau, P., Mackowski, J.M., Michel, C., Pinard, L., and Remillieux, A.
College/School:College of Science and Engineering > School of Physics and Astronomy
Research Centre:College of Science and Engineering > School of Physics and Astronomy > Institute for Gravitational Research
Journal Name:Classical and Quantum Gravity
Publisher:Institute of Physics
ISSN (Online):1361-6382
Published Online:08 December 2006

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