Martin, I.W. et al. (2014) Low temperature mechanical dissipation of an ion-beam sputtered silica film. Classical and Quantum Gravity, 31(3), 035019. (doi: 10.1088/0264-9381/31/3/035019)
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Publisher's URL: http://dx.doi.org/10.1088/0264-9381/31/3/035019
Abstract
Thermal noise arising from mechanical dissipation in oxide mirror coatings is an important limit to the sensitivity of future gravitational wave detectors, optical atomic clocks and other precision measurement systems. Here, we present measurements of the temperature dependence of the mechanical dissipation of an ion-beam sputtered silica film between 10 and 300 K. A dissipation peak was observed at 20 K and the low temperature dissipation was found to have significantly different characteristics than observed for bulk silica and silica films deposited by alternative techniques. These results are important for better understanding the underlying mechanisms of mechanical dissipation, and thus thermal noise, in the most commonly-used reflective coatings for precision measurements.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Rowan, Professor Sheila and Martin, Dr Iain and Nawrodt, Dr Ronny and Hough, Professor James and Reid, Professor Stuart and Craig, Mr Kieran and Bassiri, Mr Riccardo and Penn, Professor Steven |
| Authors: | Martin, I.W., Nawrodt, R., Craig, K., Schwarz, C., Bassiri, R., Harry, G., Hough, J., Penn, S., Reid, S., Robie, R., and Rowan, S. |
| 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: | IOP Publishing |
| ISSN: | 0264-9381 |
| ISSN (Online): | 1361-6382 |
| Copyright Holders: | Copyright © 2014 The Authors |
| First Published: | First published in Classical and Quantum Gravity 31(3):035019 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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