Multimaterial coatings with reduced thermal noise
The most sensitive measurements of time and space are made with resonant optical cavities, and these measurements are limited by coating thermal noise. The mechanical and optical performance requirements placed on coating materials, especially for interferometric gravitational wave detectors, have p...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2015
|
| Online Access: | http://hdl.handle.net/1721.1/93874 https://orcid.org/0000-0002-8018-3278 https://orcid.org/0000-0001-8459-4499 |
| _version_ | 1826196992947126272 |
|---|---|
| author | Yam, William Gras, Slawomir Evans, Matthew J |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Yam, William Gras, Slawomir Evans, Matthew J |
| author_sort | Yam, William |
| collection | MIT |
| description | The most sensitive measurements of time and space are made with resonant optical cavities, and these measurements are limited by coating thermal noise. The mechanical and optical performance requirements placed on coating materials, especially for interferometric gravitational wave detectors, have proven extremely difficult to meet despite a lengthy search. In this paper we propose a new approach to high performance coatings, the use of multiple materials at different depths in the coating. To support this we generalize previous work on thermal noise in two-material coatings to an arbitrary multimaterial stack, and develop a means of estimating absorption in these multimaterial coatings. This new approach will allow for a broadening of the search for high performance coating materials. |
| first_indexed | 2024-09-23T10:40:45Z |
| format | Article |
| id | mit-1721.1/93874 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:40:45Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/938742022-09-27T14:11:43Z Multimaterial coatings with reduced thermal noise Yam, William Gras, Slawomir Evans, Matthew J Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Yam, William Gras, Slawek Evans, Matthew J. The most sensitive measurements of time and space are made with resonant optical cavities, and these measurements are limited by coating thermal noise. The mechanical and optical performance requirements placed on coating materials, especially for interferometric gravitational wave detectors, have proven extremely difficult to meet despite a lengthy search. In this paper we propose a new approach to high performance coatings, the use of multiple materials at different depths in the coating. To support this we generalize previous work on thermal noise in two-material coatings to an arbitrary multimaterial stack, and develop a means of estimating absorption in these multimaterial coatings. This new approach will allow for a broadening of the search for high performance coating materials. National Science Foundation (U.S.) Laser Interferometer Gravitational Wave Observatory (Cooperative Agreement PHY-0757058) 2015-02-05T19:32:25Z 2015-02-05T19:32:25Z 2015-02 2014-11 2015-02-03T23:00:04Z Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/93874 Yam, William, Slawek Gras, and Matthew Evans. “Multimaterial Coatings with Reduced Thermal Noise.” Physical Review D 91.4 (2015): 042002-1-042002-6. © 2015 American Physical Society https://orcid.org/0000-0002-8018-3278 https://orcid.org/0000-0001-8459-4499 en http://dx.doi.org/10.1103/PhysRevD.91.042002 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Yam, William Gras, Slawomir Evans, Matthew J Multimaterial coatings with reduced thermal noise |
| title | Multimaterial coatings with reduced thermal noise |
| title_full | Multimaterial coatings with reduced thermal noise |
| title_fullStr | Multimaterial coatings with reduced thermal noise |
| title_full_unstemmed | Multimaterial coatings with reduced thermal noise |
| title_short | Multimaterial coatings with reduced thermal noise |
| title_sort | multimaterial coatings with reduced thermal noise |
| url | http://hdl.handle.net/1721.1/93874 https://orcid.org/0000-0002-8018-3278 https://orcid.org/0000-0001-8459-4499 |
| work_keys_str_mv | AT yamwilliam multimaterialcoatingswithreducedthermalnoise AT grasslawomir multimaterialcoatingswithreducedthermalnoise AT evansmatthewj multimaterialcoatingswithreducedthermalnoise |