Reduction of tantala mechanical losses in Ta2O5/SiO2 coatings for the next generation of VIRGO and LIGO interferometric gravitational waves detectors - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Conference Papers Year : 2007

Reduction of tantala mechanical losses in Ta2O5/SiO2 coatings for the next generation of VIRGO and LIGO interferometric gravitational waves detectors

Abstract

Mirror thermal noise in Ta2O5/SiO2 coatings is predicted to be the limiting noise in the 50-300 Hz frequency range in the interferometric gravitational wave detectors. Ta2O5 losses were dominating compared to the SiO2 losses. We developed a model to calculate multilayer mechanical losses and we are working for low mechanical losses Ta2O5/SiO2 coatings.
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Dates and versions

in2p3-00177578 , version 1 (08-10-2007)

Identifiers

  • HAL Id : in2p3-00177578 , version 1

Cite

C. Comtet, D. Forest, P. Ganau, G.M. Harry, J.-M. Mackowski, et al.. Reduction of tantala mechanical losses in Ta2O5/SiO2 coatings for the next generation of VIRGO and LIGO interferometric gravitational waves detectors. 42th Rencontres de Moriond - Gravitational Waves and Experimental Gravity, Mar 2007, La Thuile, Italy. ⟨in2p3-00177578⟩
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