Abstract

The dynamic nature of a liquid or fluid medium causes structural changes to occur on timescales corresponding to the Fourier transform of the far-infrared or Raleigh-wing spectrum of the material.¹,² Experiments that are performed on such short timescales are capable of directly capturing the solvent effect on or response to chemical processes.³ For example, successful comparison of the solvent spectral density obtained from optical Kerr effect measurements and the time correlation function for solvation, obtained from fluorescence Stokes-shift measurements, has already been made.³

© 1994 Optical Society of America