Expanding field of far infrared Fourier transform spectroscopy in the laboratory, industry, and the environment.
Twenty-five years of development and sophistication have taken place in Fourier transform spectroscopy since Fellgett drew attention to the multiplex advantage in 1952. Three important applications are reviewed. First, high resolution broadband submillimeter-wave spectroscopy at high wavenumber and spectroradiometric accuracy is discussed, with particular reference to its application in measuring the composition of the high atmosphere. Second, a rapid-scan technique applicable to the measurement of the emission from pulsed tokamak plasmas for diagnostic purposes is described, and finally some results using the technique of dispersive Fourier spectroscopy applied to solids and liquids are given.
Stone
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