Progress in the measurement and reduction of thermal noise in optical coatings for gravitational-wave detectors

M. Granata*, A. Amato, G. Cagnoli, M. Coulon, J. Degallaix, D. Forest, L. Mereni, C. Michel, L. Pinard, B. Sassolas, J. Teillon

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingAcademicpeer-review

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Abstract

Coating thermal noise is a fundamental limit for experiments involving optical and quantum transducers. We report on the latest research activity on low-noise coatings at the Laboratoire des Matériaux Avancés, from updated values for the current Ta2O5, Ta2O5-TiO2 and SiO2 coatings of the Advanced LIGO, Advanced Virgo and KAGRA detectors to recent results from sputtered Nb2O5, TiO2-Nb2O5, Ta2O5-ZrO2, MgF2, AlF3 and Si3N4 coatings. Some alternative options, like amorphous-silicon and AlGaAs crystalline coatings among others, are also briefly discussed.

Original languageEnglish
Title of host publicationOptical Interference Coatings, OIC 2019
PublisherOptica Publishing Group (formerly OSA)
ISBN (Print)9781943580583
DOIs
Publication statusPublished - 2019
Externally publishedYes
EventOptical Interference Coatings - Santa Ana Pueblo, United States
Duration: 2 Jun 20197 Jun 2019

Publication series

SeriesOptics InfoBase Conference Papers
VolumePart F162-OIC 2019

Conference

ConferenceOptical Interference Coatings
Abbreviated titleOIC 2019
Country/TerritoryUnited States
CitySanta Ana Pueblo
Period2/06/197/06/19

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