Photon echo peak shift experiments in the UV: p-terphenyl in different solvents

We present a new photon echo set-up operating in the UV range and our 1st results of photon echo peak shift (PEPS) expts. of a small non-polar dye mol., p-terphenyl (pTP), in 3 different solvents: EtOH, MeOH, and 2-propanol. The expts. show the feasibility of UV transient grating and photon echo measurements and highlight the sensitivity of this technique for the study of non-polar solvation dynamics. The transient grating expts. indicate a relaxation of the ground state hole of about 6 ps. The photon echo expts. show that while electronic dephasing occurs on timescales <100 fs, solvation dynamics timescales are in the picosecond regime, in agreement with the literature.


Published in:
Journal of Molecular Liquids, 141, 3, 118-123
Year:
2008
Keywords:
Note:
CAN 149:481043
73-2
Optical, Electron, and Mass Spectroscopy and Other Related Properties
Laboratoire de Spectroscopie Ultrarapide, ISIC, FSB, BSP,Ecole Polytechnique Federale de Lausanne (EPFL),Lausanne,Switz.
Journal
0167-7322
written in English.
92-94-4 (p-Terphenyl) Role: PEP (Physical, engineering or chemical process), PRP (Properties), PROC (Process) (photon echo peak shift expts. in UV of p-terphenyl in different solvents)
Other identifiers:
Laboratories:




 Record created 2009-03-18, last modified 2018-09-13


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