Femtosecond mid-infrared pump-probe spectroscopy of water and ice

Back to all publications

Publication date
Reference S. Woutersen, U. Emmerichs and H.J. Bakker: Femtosecond mid-infrared pump-probe spectroscopy of water and ice In: Ultrafast Phenomena XI : Proceedings of the 11th International Conference, Garmisch-Partenkirchen, Germany, July 12-17, 1998 /ed. T. Elsaesser, J.G. Fujimoto, D.A. Wiersma and W. Zinth, Cham: Springer, 1998. - pp. 562-564
Group Ultrafast Spectroscopy

We have used femtosecond mid-infrared pump-probe spectroscopy on the OH-stretching mode of HDO dissolved in D2O to investigate both the orientational and vibrational dynamics of water and ice. The orientational data provide evidence for a two-component structure of liquid water. The vibrational lifetime of the OH-stretch mode shows a remarkable temperature dependence: in water it is twice as long as in ice, and is found to increase with temperature.