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Proceedings Paper

Optical pump-terahertz spectroscopy of condensed phase reaction dynamics
Author(s): Bret N. Flanders; Norbert F. Scherer
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Paper Abstract

The general theoretical and experimental principles of optical pump-THz probe spectroscopy of chemical reactions in liquids is presented. Background on specific difficulties encountered in the experimental observation is reviewed. Chiefly, signal-to-noise ratios currently limit the quality of information that can be extracted from optical pump-THz prove data on chemical reactions. This issue is shown to be connected to the assumption of linear responses. The problem of interpretation of frequency dependent absorption coefficient data of neat liquids and solutions is addressed, and reasonably successful methods for analysis of the data are presented. Transient absorption coefficient spectra of GaAs illustrates the type of information this spectroscopic method can extract form condensed phase samples.

Paper Details

Date Published: 24 April 1998
PDF: 11 pages
Proc. SPIE 3273, Laser Techniques for Condensed-Phase and Biological Systems, (24 April 1998); doi: 10.1117/12.306116
Show Author Affiliations
Bret N. Flanders, Univ. of Chicago (United States)
Norbert F. Scherer, Univ. of Chicago (United States)

Published in SPIE Proceedings Vol. 3273:
Laser Techniques for Condensed-Phase and Biological Systems
Norbert F. Scherer; Janice M. Hicks, Editor(s)

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