Title: Probing of spatial orientational correlations between chromophores in polymer films by femtosecond hyper-Rayleigh scattering
Authors: Olbrechts, Geert ×
Put, EJH
Clays, Koen
Persoons, Andre
Matsuda, N #
Issue Date: Jan-1996
Publisher: Elsevier science bv
Series Title: Chemical Physics Letters vol:253 issue:1-2 pages:135-140
Abstract: Femtosecond hyper-Rayleigh scattering has been used to probe the spatial orientational fluctuations between nonlinear optical chromophores as dopants in spincoated polymer films. The fluctuation in the second-order incoherently scattered light intensity upon micro-translating the solid sample is indicative of the degree of spatial correlation between the individual chromophores. The decay of the autocorrelation function of this fluctuating signal is characterized by a spatial correlation length. Electric-field poling of dipolar chromophores is shown to increase this correlation length. The longer correlation length after poling results from a higher degree of spatial orientational correlation between the individual chromophores.
ISSN: 0009-2614
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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