Title: Hyper-rayleigh scattering in solution
Authors: Clays, Koen ×
Persoons, Andre #
Issue Date: Jan-1992
Publisher: Amer inst physics
Series Title: Review of scientific instruments vol:63 issue:6 pages:3285-3289
Abstract: The experimental setup for the implementation of a new technique to determine the hyperpolarizability of nonlinear optical molecules in solution is presented. The new technique, hyper-Rayleigh scattering in solution [K. Clays and A. Persoons, Phys. Rev. Lett. 66, 2980 (1991)], has the advantage over the electric-field-induced second-harmonic generation technique that the dipole moment-mu and the second hyperpolarizability-gamma do not have to be independently determined to obtain the first hyperpolarizability-beta. No electric field is needed to lower the intrinsic symmetry of the isotropic solution, leading to a simpler cell design and a simpler local field factor. The internal reference method, when applicable, completely eliminates the local field factor. With the technique presented, values of the first hyperpolarizability-beta of 23 X 10(-30) esu for para-nitroaniline (PNA), 105 X 10(-30) esu for 4-methoxy-4'-nitrostilbene (MONS), and 95 X 10(-30) esu for 4-hydroxy-4'-nitrostilbene (HONS) dissolved in chloroform have been obtained.
ISSN: 0034-6748
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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