title: Twin mirrors for laser interferometric gravitational-wave detectors.
abstract: Gravitational-wave detectors such as Virgo and the laser interferometric gravitational-wave observatory (LIGO) use a long-baseline Michelson interferometer with Fabry-Perot cavities in the arms to search for gravitational waves. The symmetry between the two Fabry-Perot cavities is crucial to reduce the interferometer's sensitivity to the laser amplitude and frequency noise. To this purpose, the transmittance of the mirrors in both cavities should be as close as possible. This paper describes the realization and the characterization of the first twin large low-loss mirrors with transmissions differing by less than 0.01%.
authors.affiliation: Laboratoire des Matériaux Avancés, CNRS/IN2P3, 7 Avenue Pierre de Coubertin, 69622 Villeurbanne Cedex, France. b.sassolas@lma.in2p3.fr
authors.forename: Benoît
authors.initials: B
authors.lastname: Sassolas
authors.forename: Quentin
authors.initials: Q
authors.lastname: Benoît
authors.forename: Raffaele
authors.initials: R
authors.lastname: Flaminio
authors.forename: Danièle
authors.initials: D
authors.lastname: Forest
authors.forename: Janyce
authors.initials: J
authors.lastname: Franc
authors.forename: Massimo
authors.initials: M
authors.lastname: Galimberti
authors.forename: Aline
authors.initials: A
authors.lastname: Lacoudre
authors.forename: Christophe
authors.initials: C
authors.lastname: Michel
authors.forename: Jean-Luc
authors.initials: JL
authors.lastname: Montorio
authors.forename: Nazario
authors.initials: N
authors.lastname: Morgado
authors.forename: Laurent
authors.initials: L
authors.lastname: Pinard