Infrared Interferometry—Emission Spectra in the Middle-Infrared Region
The advantages of interference spectroscopy have now been well established, following initial work by Fellgett,(1) Strong,(2) and others. Among the principal advantages of interferometers for spectroscopic work is the remarkable gain in sensitivity due to a simultaneous measurement of all spectral frequencies, independent of spectral slit width, and also due to a high throughput. However, the method requires a posteriori computation of the spectrum by a Fourier transformation from the measured interferogram. This transformation(3) can be a tremendous mathematical task, one that is feasible only with the aid of modern high-speed computers.
KeywordsWave Analyzer Optical Transformation Thermoplastic Resin Audio Frequency Spectral Slit Width
Unable to display preview. Download preview PDF.
- 1.P. Fellgett, Thesis, The University of Cambridge (1951).Google Scholar
- 3.L. Mertz, “Transformation in Optics,” John Wiley & Sons, New York (1965).Google Scholar
- 6.M. J. D. Low, L. Abrams, and I. Coleman, Chem. Commun. 1965, 389.Google Scholar
- 8.M. J. D. Low and J. C. McManus, Chem. Commun. 1967, 1166.Google Scholar
- 12.Varian Associates, C-1024 Time-Averaging Computer; Palo Alto, California.Google Scholar
- 13.Block Engineering Company, Cambridge, Massachusetts.Google Scholar
- 14.K. H. Rhee and L. R.Cousins, unpublished work.Google Scholar