University of Illinois Urbana-Champaign

Coherent nonlinear terahertz spectroscopy of halomethane liquids

Finneran, Ian A.

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https://hdl.handle.net/2142/91422

Description

Title
Coherent nonlinear terahertz spectroscopy of halomethane liquids
Author(s)
Finneran, Ian A.
Contributor(s)
  • Blake, Geoffrey
  • Miller III, Thomas F.
  • Allodi, Marco A.
  • Welsch, Ralph
Issue Date
2016-06-24
Keyword(s)
Instrument/Technique Demonstration
Abstract
The low-energy terahertz motions of liquids greatly influence their behavior, but are not fully understood. Here, we present results from a recently developed heterodyne-detected Terahertz Kerr Effect (TKE) spectrometer, using an intense picosecond terahertz pump pulse, followed by a weak near-infrared femtosecond probe pulse. In the responses of several halomethane liquids, we find evidence for terahertz intramolecular vibrational coupling and the excitation of intermolecular motions. The experimental results are further supported by reduced density matrix and molecular dynamics simulations. With modest improvements in sensitivity, we expect this technique to be applicable to hydrogen-bonded liquids and amorphous solids.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Language
En
Permalink
http://hdl.handle.net/2142/91422
Copyright and License Information
Copyright 2016 by the authors

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Abstracts & Presentations - 2016 International Symposium on Molecular Spectroscopy PRIMARY