Abstract
A pump-probe experiment is described to study femtosecond dynamics of hydrogen bonds in liquid water. The key element of the experimental setup is a laser source emitting 150 fs pulses in the 2.5-4.4 urn spectral region, at 10 nJ power level. The OH-stretching band is recorded for different excitation frequencies and different pump-probe delay times. Time-dependent solvatochromic shifts are observed and are interpreted with the help of statistical mechanics of nonlinear optical processes. Using these spectral data, the OH -O motions are "photographed" in real time.
| Translated title of the contribution | As |
|---|---|
| Original language | French |
| Pages (from-to) | Pr8-87-Pr8-92 |
| Journal | Journal De Physique. IV : JP |
| Volume | 10 |
| Issue number | 8 |
| Publication status | Published - 1 Dec 2000 |