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

1 February 1989

proceedings article
Published by SPIE-Intl Soc Optical Eng

p. 20-26
https://doi.org/10.1117/12.948651

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.

Keywords

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