Fig. 3.
Spectrally resolved pump-probe measurement of pure water at 274 K for (a) parallel polarization between pump and probe, and (b) perpendicular polarization between pump and probe. (c) Pump probe cross-sections integrated across the v1–2 transition (3,050–3,150 cm−1) for parallel (green) and perpendicular (blue) polarizations. (d) Pump probe cross-sections integrated across the v0–1 transition (3,300–3,600 cm−1) for parallel (black) and perpendicular (red) polarizations.