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arXiv · 1712.05701

High-Reflection Coatings for Gravitational-Wave Detectors: State of The Art and Future Developments

Alex Amato·Gianpietro Cagnoli·Maurizio Canepa·Elodie Coillet·Jerome Degallaix·Vincent Dolique·Daniele Forest·Massimo Granata·Valérie Martinez·Christophe Michel·Laurent Pinard·Benoit Sassolas·Julien Teillon
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Abstract

We report on the optical, mechanical and structural characterization of the sputtered coating materials of Advanced LIGO, Advanced Virgo and KAGRA gravitational-waves detectors. We present the latest results of our research program aiming at decreasing coating thermal noise through doping, optimization of deposition parameters and post-deposition annealing. Finally, we propose sputtered Si3N4 as a candidate material for the mirrors of future detectors.

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Alex Amato, Gianpietro Cagnoli, Maurizio Canepa, Elodie Coillet, Jerome Degallaix, Vincent Dolique, Daniele Forest, Massimo Granata, Valérie Martinez, Christophe Michel, Laurent Pinard, Benoit Sassolas, Julien Teillon. 2017-12-14. High-Reflection Coatings for Gravitational-Wave Detectors: State of The Art and Future Developments. https://doi.org/10.1088/1742-6596%2F957%2F1%2F012006

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