Table of Contents
Laser Chemistry
Volume 19, Issue 1-4, Pages 35-40
http://dx.doi.org/10.1155/1999/41281

Molecular Dynamics Investigated by Temporally Two-Dimensional Coherent Raman Spectroscopy

1Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, Berlin D-12489, Germany
2Institute of Physics, Minsk, Belarus

Received 7 April 1997

Copyright © 1999 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A six-wave set-up is described to determine molecular dynamics in the condensed phase. Applying two independent time delays between excitation and probe pulses additional information on the dynamics should be obtainable. We show experimentally that such investigations can be carried out with noisy light having intensity fluctuations in the femtosecond region. As first result we found a fast relaxation time in neat nitrobenzene of 100 fs, becoming even faster in mixtures with low viscosity liquids. Switching on a Raman resonance yields a longer relaxation time, which could be explained by an additional contribution by that vibration.