Time-Resolved Phonon Spectroscopy.

Ultrafast Time-Resolved Spectroscopy

Time-resolved fluorescence spectroscopy

Optical phonon dynamics of GaAs studied with time-resolved terahertz spectroscopy.

We investigate the reflection near the reststrahlen band of the optical phonon in bulk GaAs in the time domain, using time-resolved terahertz spectroscopy. We find that the dynamics of the reflection measured for GaAs differs strongly from the reflection dynamics that would be expected for a TO phonon with a frequency-independent dephasing time.

Time-resolved subnatural-width spectroscopy.

Spectra that are narrower than the natural width of decaying states can be achieved by beginning the observation of signals at a fixed delay time after excitation rather than immediately afterward. These signals are weaker (and noisier) than the full, time-unresolved signals. Applications of this line-narrowing technique to precision spectroscopy are discussed, and the properties of the resulti...

Time-Resolved Spectroscopy of Proteins

changes upon e.g. unfolding, substrate binding or Optical absorption of proteins in the region of 250other catalytical processes. Furthermore, single Trp 300 nm (near-UV) is governed by the aromatic mutants provide the possibility to examine protein amino acid residues phenylalanine (Phe), tyrosine dynamic at individual sites of the protein with time(Tyr) and tryptophan (Trp) [1]. Compared with...