Titania-doped tantala/silica coatings for gravitational-wave detection

Class.Quant.Grav.24:405-416,2007 Reducing thermal noise from optical coatings is crucial to reaching the required sensitivity in next generation interferometric gravitational-waves detectors. Here we show that adding TiO$_2$ to Ta$_2$O$_5$ in Ta$_2$O$_5$/SiO$_2$ coatings reduces the internal frictio...

Full description

Saved in:
Bibliographic Details
Main Authors Harry, Gregory M, Abernathy, Matthew R, Becerra-Toledo, Andres E, Armandula, Helena, Black, Eric, Dooley, Kate, Eichenfield, Matt, Nwabugwu, Chinyere, Villar, Akira, Crooks, D. R. M, Cagnoli, Gianpietro, Hough, Jim, How, Colin R, MacLaren, Ian, Murray, Peter, Reid, Stuart, Rowan, Sheila, Sneddon, Peter H, Fejer, Martin M, Route, Roger, Penn, Steven D, Ganau, Patrick, Mackowski, Jean-Marie, Michel, Christophe, Pinard, Laurent, Remillieux, Alban
Format Journal Article
LanguageEnglish
Published 01.10.2006
Subjects
Physics - General Relativity and Quantum Cosmology
Online AccessGet full text

Cover

More Information
Summary:Class.Quant.Grav.24:405-416,2007 Reducing thermal noise from optical coatings is crucial to reaching the required sensitivity in next generation interferometric gravitational-waves detectors. Here we show that adding TiO$_2$ to Ta$_2$O$_5$ in Ta$_2$O$_5$/SiO$_2$ coatings reduces the internal friction and in addition present data confirming it reduces thermal noise. We also show that TiO$_2$-doped Ta$_2$O$_5$/SiO$_2$ coatings are close to satisfying the optical absorption requirements of second generation gravitational-wave detectors.
DOI:10.48550/arxiv.gr-qc/0610004