Thermo-optic noise in coated mirrors for high-precision optical measurements

Document #:

LIGO-P080071-x0

Document type:

P - Publications

Abstract:

Thermal fluctuations in the coatings used to make high reflectors are becoming significant noise sources in precision optical measurements and are particularly relevant to advanced gravitational-wave detectors. There are two recognized sources of coating thermal noise; mechanical loss and thermal dissipation. Thermal dissipation causes thermal fluctuations in the coating which produce noise via the thermoelastic and thermorefractive mechanisms. We treat these mechanisms coherently, give a correction for finite coating thickness, and evaluate the implications for Advanced LIGO.

Files in Document:

• P080071-01.pdf (357.0 kB)

Other Files:

• P080071-00.pdf (349.0 kB)
• P080071-P.pdf (724.1 kB)

Topics:

• Public relations
• Document Migration from the old DCC

Authors:

• Matthew Evans
• Stefan Ballmer
• Martin Fejer
• Peter Fritschel
• Gregg Harry
• Greg Ogin

Notes and Changes:

Rev P080071-01-Z:
- Full document number: LIGO-P080071-01-Z
- Author(s): Matt Evans; Stefan Ballmer; M. M. Fejer; Peter Fritschel; Gregg Harry; Greg Ogin
- Document date: 2008-07-28
- Document received date: 2008-07-28
- Document entry date: 2008-07-28

Rev P080071-00-Z:
- Full document number: LIGO-P080071-00-Z
- Author(s): Matt Evans; Stefan Ballmer; M. M. Fejer; Peter Fritschel; Gregg Harry; Greg Ogin
- Document date: 2008-06-30
- Document received date: 2008-06-30
- Document entry date: 2008-06-30

Journal References:

Published in Phys Rev D vol. 78 pg. 102003 (10pp).