Ultrafast Laser Spectroscopy
Ultrafast laser spectroscopy is a relatively modern spectroscopic technique that exploits ultrashort pulse lasers for the study of dynamics on extremely small time scales (femtoseconds to nanoseconds). Based on the time scale of the reactions different methods are used to examine dynamics of unimolecular as well as bimolecular reaction processes, allowing for experimental observation of intermediated states that occur during the reaction. This ability to observe molecular reactions allows real-time viewing of energy redistributions, measurements of state-to-state rates, and determination of microscopic rates predicted by potential energy surface (PES) considerations. Charge carrier dynamic, electron transfer dynamic, proton transfer dynamic and structural dynamic of biomolecule are measured exploiting ultrafast laser spectroscopy.