Abstract

Coating thermal noise is a fundamental limit for precision experiments based on optical and quantum transducers. In this review, after a brief overview of the techniques for coating thermal noise measurements, we present the latest worldwide research activity on low-noise coatings, with a focus on the results obtained at the Laboratoire des Matériaux Avancés. We report new updated values for the $ {{\rm Ta}_2}{{\rm O}_5} $, $ {{\rm Ta}_2}{{\rm O}_5} {-} {{\rm TiO}_2} $, and $ {{\rm SiO}_2} $ coatings of the Advanced LIGO, Advanced Virgo, and KAGRA detectors, and new results from sputtered $ {{\rm Nb}_2}{{\rm O}_5} $, $ {{\rm TiO}_2} {-} {{\rm Nb}_2}{{\rm O}_5} $, $ {{\rm Ta}_2}{{\rm O}_5} {-} {{\rm ZrO}_2} $, $ {{\rm MgF}_2} $, $ {{\rm AlF}_3} $, and silicon nitride coatings. Amorphous silicon, crystalline coatings, high-temperature deposition, multi-material coatings, and composite layers are also briefly discussed, together with the latest developments in structural analyses and models.

© 2020 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Thermal noise from optical coatings in gravitational wave detectors

Gregory M. Harry, Helena Armandula, Eric Black, D. R. M. Crooks, Gianpietro Cagnoli, Jim Hough, Peter Murray, Stuart Reid, Sheila Rowan, Peter Sneddon, Martin M. Fejer, Roger Route, and Steven D. Penn
Appl. Opt. 45(7) 1569-1574 (2006)

High dynamic range thermally actuated bimorph mirror for gravitational wave detectors

Huy Tuong Cao, Aidan Brooks, Sebastian W. S. Ng, David Ottaway, Antonio Perreca, Jonathan W. Richardson, Aria Chaderjian, and Peter J. Veitch
Appl. Opt. 59(9) 2784-2790 (2020)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription