Four-photon coherent spectroscopy of orientational motion of H2O molecules in liquid water
Article first published online: 15 FEB 2005
Copyright © 2005 John Wiley & Sons, Ltd.
Journal of Raman Spectroscopy
Special Issue: Proceedings of the European Conference on Nonlinear Optical Spectroscopy (ECONOS)
Volume 36, Issue 2, pages 145–147, February 2005
How to Cite
Bunkin, A. F., Nurmatov, A. A., Pershin, S. M. and Vigasin, A. A. (2005), Four-photon coherent spectroscopy of orientational motion of H2O molecules in liquid water. J. Raman Spectrosc., 36: 145–147. doi: 10.1002/jrs.1291
- Issue published online: 15 FEB 2005
- Article first published online: 15 FEB 2005
- Manuscript Accepted: 2 OCT 2004
- Manuscript Received: 3 JUL 2004
- Russian Foundation for Basic Research. Grant Numbers: 02-02-16039, 03-02-16046, 02-05-64529.
- Ministry of Science and Technology RF.
- Russian Academy of Sciences.
- four-photon coherent spectroscopy;
- orientational motion;
- liquid water
The unexpectedly narrow structure of Rayleigh wing spectra from 5 to 50 cm−1 was detected using four-photon coherent laser spectroscopy. The observed features were compared with the IR water vapor absorption (from the HITRAN database) and with the spontaneous Raman spectrum in the vapor phase. The fairly good resemblance between our recorded four-photon spectrum and the pure rotational spectra of H2O molecules in the gas phase allows the suggestion that a discernible proportion of water molecules may exhibit virtually free rotation in the liquid phase. Copyright © 2005 John Wiley & Sons, Ltd.