Abstract

The reflection and transmission of fifteen commonly used infrared optical materials have been measured to 50 μ with a Beckman IR-7 with CsI optics. Using these reflection properties, small inexpensive reststrahlen filters have been constructed. By applying a fine grind to reststrahlen plates, it is shown that stray light can be reduced in far-infrared instruments.

© 1963 Optical Society of America

The Reflection and Transmission of Infrared Materials. V: Spectra from 2 μ to 50 μ

Donald E. McCarthy
Appl. Opt. 7(10) 1997-2000 (1968)

The Reflection and Transmission of Infrared Materials: III, Spectra from 2 μ to 50 μ

Donald E. McCarthy
Appl. Opt. 4(3) 317-320 (1965)

The Reflection and Transmission of Infrared Materials: II, Bibliography

Donald E. McCarthy
Appl. Opt. 2(6) 596-603 (1963)

Measurement of the Infrared Spectral Absorptance of Optical Materials

D. L. Stierwalt, J. B. Bernstein, and D. D. Kirk
Appl. Opt. 2(11) 1169-1173 (1963)

Computed Transmission Spectra for 27-Micron H₂O Band

David M. Gates, Robert F. Calfee, and David W. Hansen
Appl. Opt. 2(11) 1117-1122 (1963)