An interferometric spectrometer of the Fabry-Perot type has been built for the infrared spectral region and its resolving power has been tested on the 10-μ band of NH3. The interferometer has two sets of plates. One set of plates is closely spaced to isolate a free spectral range for the other set, which is more widely spaced to achieve the final resolution. Wavelength scanning is achieved by a synchronized mechanical separation of both sets of plates. The interferometer plates are figured rocksalt crystal plates coated with evaporated multilayers of tellurium and sodium chloride.
© 1957 Optical Society of AmericaFull Article | PDF Article
OSA Recommended Articles
Bruce Swinyard and Marc Ferlet
Appl. Opt. 46(25) 6381-6390 (2007)
Hiroshi Yoshinaga, Shigeru Fujita, Shigeo Minami, Yoshiro Suemoto, Masaru Inoue, Kazuo Chiba, Kaoru Nakano, Shigeru Yoshida, and Hideo Sugimori
Appl. Opt. 5(7) 1159-1165 (1966)
J. Opt. Soc. Am. 46(4) 255-258 (1956)