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Optical Engineering

Resonance Ionization Spectroscopy Of Atoms And Molecules
Author(s): Munir H. Nayfeh
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Paper Abstract

Resonance ionization spectroscopy (RIS) which is a selective multistep photoionization process using tunable pulsed lasers has provided a new sensitive method for the study of a variety of processes in chemical physics. These include the selective detection of very small numbers of atoms and molecules, thus providing very sensitive probes of trace pollutants, chemical reactions, diffusion, and density fluctuations. Also RIS proved to be far more sensitive than the conventional absorption or fluorescence methods for the study of binary atomic collisions. The extra sensitivity allows the investigation on the far wing of optically thin samples where the high density and high temperature effects (dimer absorption, three body effects, and self broadening), are essentially eliminated. In particular the method will be crucial in studies of S-S and S-D transitions.

Paper Details

Date Published: 1 February 1980
PDF: 9 pages
Opt. Eng. 19(1) doi: 10.1117/12.7972469
Published in: Optical Engineering Volume 19, Issue 1
Show Author Affiliations
Munir H. Nayfeh, University of Illinois at Urbana-Champaign (United States)


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