Steinlechner, J. and Martin, I. W. (2016) High index top layer for multimaterial coatings. Physical Review D, 93(10), 102001. (doi: 10.1103/PhysRevD.93.102001)
|
Text
128813.pdf - Accepted Version 1MB |
Abstract
For application in future cryogenically cooled gravitational wave detectors, the thermal noise of low absorbing mirror coatings has to be reduced. The development of low mechanical and optical loss materials is challenging, but thermal noise reduction can be significantly supported by using a multimaterial coating design. We analyze the possible improvement of the total (optical and mechanical) loss of a three-material based coating obtained by optimizing the properties of the top layer of the coating stack. A top-layer material with sufficiently high refractive index could have a significantly higher optical and mechanical loss than currently used tantala, while still enabling reduction of the total coating loss. Restrictions on possible top-layer material properties are made, and the option of a crystalline top layer is discussed.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Steinlechner, Dr Jessica and Martin, Dr Iain |
| Authors: | Steinlechner, J., and Martin, I. W. |
| Subjects: | Q Science > QC Physics |
| 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: | Physical Review D |
| Publisher: | American Physical Society |
| ISSN: | 1550-7998 |
| ISSN (Online): | 1550-2368 |
| Published Online: | 02 May 2016 |
| Copyright Holders: | Copyright © 2016 American Physical Society |
| First Published: | First published in Physical Review D 93(10): 102001 |
| Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
University Staff: Request a correction | Enlighten Editors: Update this record
Altmetric
Altmetric