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Amorphous optical coatings of present gravitational-wave interferometers
Massimo Granata, Alex Amato, Laurent Balzarini +10
We report on the results of an extensive campaign of optical and mechanical characterization of the ion-beam sputtered oxide layers (TaO, TiO, TaO-TiO, SiO$…
High-Reflection Coatings for Gravitational-Wave Detectors: State of The Art and Future Developments
Alex Amato, Gianpietro Cagnoli, Maurizio Canepa +10
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…
A new method of probing mechanical losses of coatings at cryogenic temperatures
Serge Galliou, Samuel Deléglise, Maxim Goryachev +14
A new method of probing mechanical losses and comparing the corresponding deposition processes of metallic and dielectric coatings in 1-100 MHz frequency range and cryogenic temper…
Mechanical loss in state-of-the-art amorphous optical coatings
Massimo Granata, Emeline Saracco, Nazario Morgado +9
We present the results of mechanical characterizations of many different high-quality optical coatings made of ion-beam-sputtered titania-doped tantala and silica, developed origin…
Measurements of mechanical thermal noise and energy dissipation in optical dielectric coatings
Tianjun Li, Felipe A. Aguilar Sandoval, Mickael Geitner +10
In recent years an increasing number of devices and experiments are shown to be limited by mechanical thermal noise. In particular sub-Hertz laser frequency stabilization and gravi…