Abstract

A technique is described for fitting collisional linewidths and shifts from experimental spectral data. The method involves convoluting a low-pressure reference spectrum with a Lorentz shape function and comparing the convoluted spectrum with higher pressure spectra. Several experimental examples are given. One advantage of the method is that no extra information is needed about the instrument response function or spectral modulation. In addition, the method is shown to be relatively insensitive to the presence of reflections in the sample cell.

© 1980 Optical Society of America

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Author Affiliations

Herbert M. Pickett

The author is with California Institute of Technology, Jet Propulsion Laboratory, Pasadena, California 91103.

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