Abstract
The Frustrated Total Reflection filter is a transmission band pass filter. It can be constructed for any part of the spectrum for which there exist transparent materials of different indices of refraction. Measurements are shown of a filter which was designed for the rocksalt infra-red region. This filter has two oppositely polarized pass bands which, at a particular angle of incidence, are at and 5 microns, respectively. Both the pass bands are approximately of a micron wide. They can be shifted over a range of approximately half a micron by tilting the filter.
© 1949 Optical Society of America
Full Article | PDF ArticleMore Like This
B. H. Billings
J. Opt. Soc. Am. 40(7) 471-476 (1950)
Harry D. Polster
J. Opt. Soc. Am. 39(12) 1038-1043 (1949)
Leonard Bergstein and Carl Shulman
Appl. Opt. 5(1) 9-21 (1966)