| Photoinduced SHG in Push-Pull Chromophores 1,3-dithiol-2-yliedene Moieties Embedded in Photopolymer Matrices |
| A. Migalska-Zalas, M. Makowska-Janusik, I.V. Kityk Institute of Physics, al. Armii Krajowej 13/15, 42-201 Częstochowa, Poland B. Sahraoui Laboratory POMA, UMR CNR 6136, University of Angers, France M. Salle and A. Gorgues Laboratory IMMO, UMR CNRS 6501, University of Angers, France |
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| Photoinduced optical second harmonic generation was demonstrated in the several dithiole chromophore molecules with different degree of acceptor function. Theoretical quantum chemical simulations and experimental photoinduced second harmonic generation measurements showed that additional aromatic rings within the dithiole chromophore molecule play an important role in the pump-power dependencies of the second harmonic generation. Varying the presence of the aromatic rings one can achieve substantially different photoinduced second-order nonlinear optical properties. |
| DOI: 10.12693/APhysPolA.103.293 PACS numbers: 42.65.An, 42.65.Ky |