Abstract

A far-infrared grating spectrometer has been developed specifically to investigate gases and solids in the 200–1000μ region. The monochromator is a ƒ/2 Czerny–Turner system and three gratings with constants of 250, 500, and 1000μ are employed. Filtering of unwanted radiation is accomplished by using metallic-mesh reflection filters and a conical light pipe is used for the concentration of the light onto a Golay detector window. This instrument is calibrated by using the pure rotation spectrum of water vapor or methylchloride (CH₃Cl).

© 1965 Optical Society of America

Vacuum Grating Spectrometer for the Mid and Far Infrared

A. R. H. Cole, A. A. Green, G. A. Osborne, and G. D. Reece
Appl. Opt. 9(1) 23-29 (1970)

Czerny-Turner Far Infrared Spectrometer for the 300–10 cm⁻¹ Region

J. W. Russell and H. L. Strauss
Appl. Opt. 4(9) 1131-1136 (1965)

High-Resolution Grating Spectrometer for the Far Infrared

F. K. Kneubühl, J.-F. Moser, and H. Steffen
J. Opt. Soc. Am. 56(6) 760-764 (1966)

An Infrared Vacuum Grating-Prism Spectrometer

T. K. McCubbin, J. A. Lowenthal, and Howard R. Gordon
Appl. Opt. 4(6) 711-714 (1965)

Measurements on Transmission-Filter Gratings in the Far Infrared

K. D. Möller and R. V. McKnight
J. Opt. Soc. Am. 55(9) 1075-1078 (1965)