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Published March 18, 2002 | public
Journal Article

Extension of gravity-wave interferometer operation to low frequencies

Abstract

Experiments relating to concepts for extending interferometer operation, particularly at low frequencies, are discussed. This includes work with suspensions connected by a suspension-point interferometer. A new concept for achieving similar frequency extension without requiring an additional interferometer between suspensions is outlined, as well as a technique for improving positioning of laser beams relative to centres of gravity of test masses in gravity-wave interferometers and other instruments.

Additional Information

© 2002 IOP Publishing Ltd. Received 10 October 2001, in final form 18 January 2002. Published 18 March 2002. We would like to thank S I Vass for invaluable assistance in constructing and setting up much of the apparatus and D S Sullivan who joined the work very recently. We thank the LIGO Project for loans of equipment and P Willems and colleagues in LSC for other assistance. The work is supported in part by the National Science Foundation, under grant PHY-9722112, and by the California Institute of Technology.

Additional details

Created:
August 19, 2023
Modified:
October 25, 2023