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Published January 1, 1995 | public
Journal Article Open

Measured limits to contamination of optical surfaces by elastomers in vacuum

Abstract

We have monitored the reflectivity of mirrors that were exposed to a fluoroelastomer (3M-Fluorel 2176) and a room-temperature vulcanizing silicone rubber (RTV-615) in vacuum. The 95% confidence limit on the decrease of mirror reflectivities was less than 0.35 ppm/week for Fluorel and <0.29 ppm@week for RTV-615.

Additional Information

© 1995 Optical Society of America Received 24 January 1994; revised manuscript received 29 July 1994. We thank R. Vogt and the entire Laser Interferometer Gravitational-Wave Observatory team for support and critical discussions. We are especially grateful to Stan Whitcomb for helpful advice. This research was supported by the National Science Foundation cooperative agreement PHY-9210038.

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