24 April 1998 Optical pump-terahertz spectroscopy of condensed phase reaction dynamics
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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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bret N. Flanders, Bret N. Flanders, Norbert F. Scherer, Norbert F. Scherer, } "Optical pump-terahertz spectroscopy of condensed phase reaction dynamics", Proc. SPIE 3273, Laser Techniques for Condensed-Phase and Biological Systems, (24 April 1998); doi: 10.1117/12.306116; https://doi.org/10.1117/12.306116


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