Ultrafast Spectroscopy

lasers & ultrafast spectroscopy Pump-Probe Experiments Time-Resolved Spectra Gas Phase Reactions Condensed Phase Systems Generally, ultrafast spectroscopy refers to pump-probe experiments using picosecond or femtosecond lasers to get time-resolved spectral information. Traditionally ultrafast spectroscopy was restricted to gas phase reactions, where molecules are considered to be isolated. It is therefore easier to distinguish spectral features and energy transfer mechanisms than in condensed phase systems. These experiments have lead to an ever increasing knowledge of gas phase reactions resulting in quantum control of reactions in the gas phase. Since the development of reliable solid-state ultrafast lasers over 10 years ago, ultrafast spectroscopy is not limited to gas phase reactions. The ability to chose pulsewidth, wavelength, or amplify the traditional Ti:S output means ever more increasing applications in condensed phase systems as well.