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.
© 1995 Optical Society of America
Original Manuscript: January 24, 1994
Revised Manuscript: July 29, 1994
Published: January 1, 1995
A. Abramovici, T. T. Lyons, and F. J. Raab, "Measured limits to contamination of optical surfaces by elastomers in vacuum," Appl. Opt. 34, 183-185 (1995)