title: Vacuum grating spectrometer for the mid and far infrared.
abstract: The construction and performance of a single beam large aperture spectrometer totally enclosed in a vacuum chamber are described. The focal length of the Czerny-Turner monochromator is 90 cm and plane gratings up to 23 cm x 18 cm are used. The grating drive incorporates a Merton nut. With a Golay detector, the resolution achieved is about 0.12 cm(-1) at 1000 cm(-1), 0.20-0.30 cm(-1) in the range 300-27 cm(-1) Illustrative spectra of ammonia, water vapor, and glyoxal are given.
authors.forename: A R
authors.initials: AR
authors.lastname: Cole
authors.forename: A A
authors.initials: AA
authors.lastname: Green
authors.forename: G A
authors.initials: GA
authors.lastname: Osborne
authors.forename: G D
authors.initials: GD
authors.lastname: Reece