Compensation for thermal effects in mirrors of gravitational wave interferometers
Laboratoire de l'Accélérateur Linéaire (and VIRGO collaboration) ,
B.P. 34, 91898 Orsay Cedex, France
Corresponding author: a email@example.com
Published online: 15 September 2001
In this paper we study several means of compensating for thermal lensing which, otherwise, should be a source of concern for future upgrades of interferometric detectors of gravitational waves. The methods we develop are based on the principle of heating the cold parts of the mirrors. We find that thermal compensation can help a lot but can not do miracles. It seems finally that the best strategy for future upgrades ("advanced configurations" ) is may be to use thermal compensation together with another substrate materials than silica, for example sapphire.
PACS: 04.80.Nn – Gravitational wave detectors and experiments / 78.20.Nv – Thermooptical and photothermal effects
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2001