Evidence of Protein Collective Motions on the Picosecond Timescale

We investigate the presence of structural collective motions on a picosecond timescale for the heme protein, cytochrome c, as a function of oxidation and hydration, using terahertz (THz) time domain spectroscopy and molecular dynamics simulations. The THz response dramatically increases with oxidation, with the largest increase for lowest...

Quenching of excitonic quantum-well photoluminescence by intense far-infrared radiation: Free-carrier heating