Abstract

A Michelson interferometer spectrometer has been constructed for the investigation of ir emission spectra from weakly emitting sources such as thermally excited gases, fluorescing solids, and gas discharges at any wavenumber between 10–10,000 cm⁻¹. Auxiliary apparatus permits the study of absorption spectra of gases, liquids, or solids and of samples at liquid helium or nitrogen temperatures. The spectrometer is described and the design parameters are discussed. The absorption and the thermally excited emission spectra of the ν₂ forbidden band of methane and the inversion rotation emission spectra of ammonia are shown as examples of the degree to which the design conditions are met.

© 1969 Optical Society of America

High resolution Fourier transform spectrometer (0.005 cm⁻¹) for the 0.6–100-μm spectral range

A. A. Balashov, V. S. Bukreev, N. G. Kultepin, I. N. Nesteruk, E. B. Perminov, V. A. Vagin, and G. N. Zhizhin
Appl. Opt. 17(11) 1716-1722 (1978)

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)

Working resolution of 0.010 cm⁻¹ between 20 cm⁻¹ and 1200 cm⁻¹ by a Fourier spectrometer

Jyrki Kauppinen
Appl. Opt. 18(11) 1788-1796 (1979)

A Double Beam Interferometer for the Middle Infrared

R. Hanel, M. Forman, T. Meilleur, R. Westcott, and J. Pritchard
Appl. Opt. 8(10) 2059-2065 (1969)

A Rapid-Scan Spectrometer for Scanning 2000 Å–15 μm in 3 sec

H. A. Kruegle and S. A. Dolin
Appl. Opt. 8(10) 2107-2115 (1969)