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Phys. Rev. D 54, 1276–1286 (1996)

Scattered light noise in gravitational wave interferometric detectors: Coherent effects

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Jean-Yves Vinet
Laboratoire d'Optique Appliqúee, Ecole Polytechnique-Ecole Nationale Supérieure de Techniques Avancées, 91120 Palaiseau, France

Violette Brisson
Groupe Virgo, Laboratoire de l'Accélérateur Linéaire, Bat 208, Université Paris-Sud, 91405 Orsay, France

Stefano Braccini
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, Via Livornese 582/a, San Piero a Grado I-56010 Pisa, Italy

Received 15 January 1996; published in the issue dated 15 July 1996

Large interferometric detectors of gravitational waves involve high power light beams stored in optical resonators or Fabry-Perot cavities, installed in km long vacuum pipes. Scattering of light by mirrors, interaction of the scattered light with the walls of the vacuum vessel, and final rescattering on any mirror is a source of noise in such antennas. We present some results obtained within the framework of a coherent approach of scattered light propagation using a coherence function allowing us to study, namely, the effects of small reflecting surfaces along the tube, of diffraction, and of reflection by eventual baffle edges.

© 1996 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.54.1276
DOI:
10.1103/PhysRevD.54.1276
PACS:
04.80.Nn, 95.55.Ym