This paper describes a simple and relatively inexpensive modification of the Perkin-Elmer Model 112 spectrometer for use as a grating instrument. The grating spectrometer has been used to 180 cm−1 wavenumbers in single-pass operation and in double-pass use data have been obtained to 260 cm−1. The wavenumber spread at 200 cm−1 was about 1.5 cm−1; this is gratifying in that the original thermocouple detector was used.
© 1965 Optical Society of America
Original Manuscript: April 28, 1964
Published: February 1, 1965
Robert J. Bell and T. E. Gilmer, "A Simple Grating Spectrometer for the Infrared," Appl. Opt. 4, 157-160 (1965)