Title: Determination of resonant and nonresonant 3rd-order nonlinearities of organic-molecules by phase-conjugate interferometry
Authors: Tackx, P ×
Kauranen, M
Persoons, Andre #
Issue Date: Jan-1994
Publisher: Optical soc amer
Series Title: Optics letters vol:19 issue:15 pages:1113-1115
Abstract: We have used a phase-conjugate interferometer to determine the real and imaginary parts of the third-order hyperpolarizability of 3,3'-diethyloxadicarbocyanine iodide (DODCI) and 4-methoxy-4'-nitrostilbene (MONS) at 1064 nm. For DODCI the values are enhanced by a two-photon resonance, and the two-photon extinction coefficient is determined. However, the nonlinear loss of DODCI is dominated by linear absorption from the two-photon excited state. We could not observe linear or nonlinear absorption for the MONS solutions, and we have determined the nonresonant third-order hyperpolarizability for this molecule.
ISSN: 0146-9592
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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