ACTA

THE THIRD-ORDER NONLINEAR OPTICAL SUSCEPTIBILITY IN OCTUPOLAR MOLECULE AND ITS DIPOLAR SUBUNIT

B. Derkowska^a, B. Sahraoui^a, X. Nguyen Phu^a and C. Andraud^b
^aLaboratory POMA, EP CNRS 130 University of Angers, 2 Bd. Lavoisier, 49045, Angers Cedex 01, France
^bEcole Normale Superieure de Lyon, Stereochimie et Interaction Moleculaires, UMR CNRS-ENS Lyon, 46, Allee d'Italie, 69364 Lyon Cedex 07, France

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The third-order nonlinear optical susceptibility χ^{< 3>} of octupolar molecule with three double bonds was measured using degenerate four wave mixing technique at 532 nm in tetrahydrofuran solution. For comparison, we also measured its analogous dipolar subunit. We found that the χ^{< 3>} value for octupolar molecule is about twice larger than its dipolar subunit.

DOI: 10.12693/APhysPolA.99.155
PACS numbers: 42.65.An, 78.66.Qn