Time-Resolved Terahertz Spectroscopy of Condensed Phase Reactions

Optical Pump-Terahertz Probe Spectroscopy of Condensed Phase Reaction Dynamics

The general theoretical and experimental principles of optical pump-THz probe spectroscopy of chemical reactions in liquids is presented. Background on specific difficulties encountered in the experimental observation is reviewed. Chiefly, signal-to-noise ratios currently limit the quality of information that can be extracted from optical pump-THz probe data on chemical reactions. This issue is...

Ultrafast Time-Resolved Spectroscopy

Time-resolved fluorescence spectroscopy

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...

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.