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research article

Ultrafast UV photon echo peak shift and fluorescence up conversion studies of non-polar solvation dynamics

Oskouei, A. Ajdarzadeh  
•
Braem, O.  
•
Cannizzo, A.  
Show more
2008
Chemical Physics

The authors present photon echo peak shift and femtosecond fluorescence up-conversion studies of nonpolar solvation dynamics of a simple nonpolar dye p-terphenyl in EtOH and cyclohexane, using excitation in the UV range at 290 nm. The UV fluorescence up-conversion expts. were combined with a polychromatic detection and the results highlight the high sensitivity of this approach to fully characterize the excited state dynamics of the dye. The authors also demonstrate the feasibility of UV photon echo and transient grating and its sensitivity for the detection of nonpolar solvation dynamics by measuring the frequency correlation function of the dye in the ground state. While solvation dynamics in the picosecond regime is obsd. in EtOH, electronic coherence dephasing occurs on timescales faster than 100 fs in EtOH as well as in the nonpolar solvent cyclohexane.

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Type
research article
DOI
10.1016/j.chemphys.2008.01.029
Web of Science ID

WOS:000257539500013

Author(s)
Oskouei, A. Ajdarzadeh  
Braem, O.  
Cannizzo, A.  
van Mourik, F.  
Tortschanoff, A.  
Chergui, M.  
Date Issued

2008

Published in
Chemical Physics
Volume

350

Issue

1-3

Start page

104

End page

110

Subjects

Solvation (dynamics of; ultrafast UV photon echo peak shift and fluorescence up conversion studies of non-polar solvation dynamics); Laser radiation (from Ti:sapphire laser; ultrafast UV photon echo peak shift and fluorescence up conversion studies of non-polar solvation dynamics); Fluorescence (gradient; ultrafast UV photon echo peak shift and fluorescence up conversion studies of non-polar solvation dynamics); Correlation function; Fluorescence up-conversion; Luminescence; Photon echo; Solvent effect; UV and visible spectra (ultrafast UV photon echo peak shift and fluorescence up conversion studies of non-polar solvation dynamics)

•

photon echo shift fluorescence upconversion nonpolar solvation dynamics

Note

CAN 149:234229

73-5

Optical, Electron, and Mass Spectroscopy and Other Related Properties

Laboratoire de Spectroscopie Ultrarapide, ISIC, FSB,Ecole Polytechnique Federale de Lausanne,Lausanne,Switz.

Journal

written in English.

64-17-5 (Ethanol); 110-82-7 (Cyclohexane) Role: PRP (Properties) (solvent effect; ultrafast UV photon echo peak shift and fluorescence up conversion studies of non-polar solvation dynamics); 92-94-4 (p-Terphenyl) Role: PEP (Physical, engineering or chemical process), PRP (Properties), PROC (Process) (ultrafast UV photon echo peak shift and fluorescence up conversion studies of non-polar solvation dynamics)

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LSU  
Available on Infoscience
February 27, 2006
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/225767
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