Ultrafast solvent dynamics: Connection between time resolved fluorescence and optical Kerr measurements
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چکیده
Articles you may be interested in Advances in ultrafast time resolved fluorescence physics for cancer detection in optical biopsy Polar solvation dynamics of coumarin 153 by ultrafast time-resolved fluorescence Orientational and interaction induced dynamics in the isotropic phase of a liquid crystal: Polarization resolved ultrafast optical Kerr effect spectroscopy The effects of anion and cation substitution on the ultrafast solvent dynamics of ionic liquids: A time-resolved optical Kerr-effect spectroscopic study Time resolved fourwave mixing technique to measure the ultrafast coherent dynamics in semiconductor optical amplifiers Appl. The vibrational characteristics of liquid dynamics are used to describe the ultrafast relaxations observed in time-dependent fluorescence Stokes shift [J. Chem. Phys. 95, 4715 (1991)] and heterodyne detected optical Kerr effect measurements on acetonitrile, via a Brownian oscillator model. Introducing a frequency distribution of vibrational modes makes it possible to compare the two experiments. The ultrafast decays observed in the fluorescence Stokes shift and optical Kerr signals are produced by destructive superposition of the high frequency, underdamped modes.
منابع مشابه
Time-resolved luminescence spectroscopy by the optical Kerr-gate method applicable to ultrafast relaxation processes
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