Etude de la solvatation de composes aromatiques et des transferts de charge induisant une fluorescence double

Ultrafast Photochemical Intramolecular Charge and Excited State Solvation

Sub-picosecond relaxation of large organic molecules in solution

Picosecond optical pulses provide a unique means for studying ultrafast processes associated with the interaction of light with matter. Implementation of these studies has required the development of new measurement techniques capable of picosecond time resolution. In this chapter, we describe the various methods that are now available for characterizing picosecond laser pulses and for detecting rapid events created by them. Our emphasis here is on the relative advantages and limitations of the techniques themselves and less on the results of particular experiments. An understanding of these techniques is necessary for proper evaluation of any picosecond experiment. Many inconsistencies in early work have been due not only to the variability of pulsed laser sources but to improper interpretation of experimental results. As the various pitfalls of picosecond measurement become better understood, experimental studies become more reliable. At the same time, a better understanding of ultrafast process will undoubtedly lead to new and better measurement techniques.

Techniques for Measurement

https://epub.uni-regensburg.de/4049/1/ubr03491_ocr.pdf

M.M. Malley

Papers

The picosecond time-resolved fluorescence spectrum of rhodamine 6G

Molecular orientational relaxation times in liquids

The picosecond kinetics of the spontaneous fluorescence of erythrosin B