Martin, I. et al. (2008) Measurements of a low-temperature mechanical dissipation peak in a single layer of Ta2O5 doped with TiO2. Classical and Quantum Gravity, 25(5), Art. 055005. (doi: 10.1088/0264-9381/25/5/055005)
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Abstract
Thermal noise arising from mechanical dissipation in oxide coatings is a major limitation to many precision measurement systems, including optical frequency standards, high-resolution optical spectroscopy and interferometric gravity wave detectors. Presented here are measurements of dissipation as a function of temperature between 7 K and 290 K in ion-beam-sputtered Ta2O5 doped with TiO2, showing a loss peak at 20 K. Analysis of the peak provides the first evidence of the source of dissipation in doped Ta2O5 coatings, leading to possibilities for the reduction of thermal noise effects.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Rowan, Professor Sheila and Martin, Dr Iain and Reid, Professor Stuart and MacLaren, Dr Ian and Hough, Professor James |
| Authors: | Martin, I., Armandula, H., Comtet, C., Fejer, M.M., Gretarsson, A., Harry, G., Hough, J., Mackowski, J.-M.M., MacLaren, I., Michel, C., Montorio, J.L., Morgado, N., Nawrodt, R., Penn, S., Reid, S., Remillieux, A., Route, R., Rowan, S., Schwarz, C., Seidel, P., Vodel, W., and Zimmer, 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: | 0264-9381 |
| ISSN (Online): | 1361-6382 |
| Published Online: | 12 February 2008 |
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