Mark Halpern, Herbert P. Gush, Edward Wishnow, and Vittorio De Cosmo, "Far infrared transmission of dielectrics at cryogenic and room temperatures: glass, Fluorogold, Eccosorb, Stycast, and various plastics," Appl. Opt. 25, 565-570 (1986)
The absorption coefficient and index of refraction have been measured in the 2–30-cm−1 frequency range for the following materials at a temperature near 5 K: Pyrex, Fluorogold, Eccosorb CR110, Stycast 2850 FT, Plexiglas, TPX, Neoprene, Teflon, and Nylon. For some of these materials room temperature measurements were also made.
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Valid over the 2–30-cm−1 frequency range.
Corning Glass Works, Corning, N.Y.
Schott glass used as a replacement for Pyrex by our glassblower.
Standard microscope cover slip.
E.I. DuPont de Nemours & Co., Inc., Wilmington, DE.
Emerson and Cuming, Gardena, CA.
Rohm & Haas Canada, Ltd.
Yarsley Research Laboratories Ltd., Slough, Bucks, U.K.
Samples were too thin to show significant absorption (≳10%) up to the highest frequency measured, 40 cm−1.
Because of a malfunction, accurate absorption coefficients of Nylon were not obtained, and the figures given should be considered a general guide only to this rather strongly absorbing plastic.