Abstract

The infrared transmittance of deposited films of tellurium, bismuth, antimony, and magnesium oxide has been measured. These filters are opaque in the visible region and have short wavelength cutoffs varying from 1 to 3 microns. Reflection filters have also been made, for the region from 10μ to 40μ, by roughening the surface of a mirror with emery powder. These filters are used in removing stray radiation from the KBr and KRS-5 regions of the spectrum.

© 1952 Optical Society of America

A Reflectometer for Measuring Diffuse Reflectance in the Visible and Infrared Regions

Willard L. Derksen and Thomas I. Monahan
J. Opt. Soc. Am. 42(4) 263-265 (1952)

Transmission Filters in the Far-Infrared Region

Yahiko Yamada, Akiyoshi Mitsuishi, and Hiroshi Yoshinaga
J. Opt. Soc. Am. 52(1) 17-19 (1962)

An Infrared Spectrograph for Use in the 40–150-Micron Spectral Region*

R. A. Oetjen, W. H. Haynie, W. M. Ward, R. L. Hansler, H. E. Schauwecker, and E. E. Bell
J. Opt. Soc. Am. 42(8) 559-566 (1952)

The Infrared Properties of Gold Smoke Deposits*

Louis Harris and John K. Beasley
J. Opt. Soc. Am. 42(2) 134-140 (1952)

Notes on the Practice of Infrared Spectroscopy

R. C. Lord, R. S. McDonald, and Foil A. Miller
J. Opt. Soc. Am. 42(3) 149-159 (1952)