Investigation Of Ultrafast Molecular Dynamics Of Liquids Via Coherent, Time-Resolved Fourier Transform Spectroscopy

William T. Lotshaw; Dale McMorrow; Geraldine A. Kenney-Wallace

doi:10.1117/12.948651

1 February 1989 Investigation Of Ultrafast Molecular Dynamics Of Liquids Via Coherent, Time-Resolved Fourier Transform Spectroscopy

William T. Lotshaw, Dale McMorrow, Geraldine A. Kenney-Wallace

Author Affiliations +

Proceedings Volume 0981, High Speed Photography, Videography, and Photonics VI; (1989) https://doi.org/10.1117/12.948651
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

The molecular dynamics of liquids in the frequency range 100 GHz to tens of THz are conveniently interrogated with broadband femtosecond laser pulses through the time resolved optical Kerr effect. .The molecular dynamics are extracted from the data by a combination of the traditional semi-log plot analysis for diffusive relaxations, and a novel Fourier transform analysis for the intra- and inter molecular vibrational dynamics. These techniques are applied to the optical Kerr dynamics of liquid iodobenzene at room temperature, providing evidence for the presence of both librational motion (at short times) and diffusive reorientation (at longer times) about two distinct molecular axes.

Citation Download Citation

William T. Lotshaw, Dale McMorrow, and Geraldine A. Kenney-Wallace "Investigation Of Ultrafast Molecular Dynamics Of Liquids Via Coherent, Time-Resolved Fourier Transform Spectroscopy", Proc. SPIE 0981, High Speed Photography, Videography, and Photonics VI, (1 February 1989); https://doi.org/10.1117/12.948651

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