Snapshots of sub-picosecond dynamics in heme-proteins captured by Femtosecond Stimulated Raman Scattering

The reaction pathway in photoexcited hemeproteins (ligand dissociation, energy redistribution and structural dynamics) has been unraveled by Femtosecond Stimulated Raman Scattering. The possible existence of short living intermediates as opposed to vibrational relaxation is discussed.