Abstract

This paper describes the construction, performance, and applications of a Michelson-type Fourier spectrometer designed for spectroscopy in the 10-cm−1 to 200-cm−1 spectral region. Development of the arc-stabilized mercury lamp, adequate stabilization of the cooled detector, and selection of optimum sampling time have provided reproducible and high S/N interferograms. The evaluated reproducibility and accuracy of intensity of the spectrometer are better than :±2%. An apodized resolution of 0.1 cm−1 and accuracy of frequency within 0.015 cm−1 have also been obtained. The electron spin resonance of some biological substances and the refractive index of solids, for example, have been measured with this spectrometer.

© 1972 Optical Society of America

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