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Second- and Third-Order Nonlinearities of Novel Push-Pull Azobenzene Polymers

Abstract :

In this work, the second- and third-order nonlinear optical response of spin-deposited thin films of three different push pull side chain azobenzene polymers is investigated by the second- and third-harmonic Maker fringes techniques using 30 Ps laser pulses at a fundamental wavelength of 1064 nm. Measurements were carried out before and after aligning the chromophores by corona poling of the films, while different polarization configurations have been utilized. Strong dependence of the response upon the structure of the systems has been found, which is related to the different charge transfer within the molecules. The reported findings are compared with already published results.

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Soumis le : mercredi 15 septembre 2021 - 11:05:24
Dernière modification le : jeudi 9 décembre 2021 - 15:46:05



Hasnaa El Ouazzani, Konstantinos Iliopoulos, Mindaugas Pranaitis, Oksana Krupka, Vitaliy Smokal, et al.. Second- and Third-Order Nonlinearities of Novel Push-Pull Azobenzene Polymers. Journal of Physical Chemistry B, 2011, 115 (9), pp.1944-1949. ⟨10.1021/jp109936t⟩. ⟨hal-03344691⟩



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