Karakas, A.EL Ouazzani, H.Kirkan, N.Krupka, O.Smokal, V.Migalska-Zalas, A.Sahraoui, B.2020-03-262020-03-262013978-1-4799-0683-32162-7339https://hdl.handle.net/20.500.12395/2993915th International Conference on Transparent Optical Networks (ICTON) -- JUN 23-27, 2013 -- Cartagena, SPAINTo estimate the potential for third-order nonlinear optical (NLO) properties of the title azobenzene polymers, the one-photon absorption (OPA) and two-photon absorption (TPA) characterizations have been determined by configuration interaction (CI) and time-dependent Hartree-Fock (TDHF) methods, respectively. The nonlinear absorption parameters (beta) and third-order susceptibilities (chi((3))) have been measured by performing the Z-scan measurements. According to the ab-initio computation results, the investigated compounds exhibit averaged (isotropic) second hyperpolarizabilities (<gamma >) with non-zero values, implying microscopic third-order optical nonlinearity. Our computed results on TPA cross-sections (delta(omega)), third-order hyperpolarizability and susceptibility values are in accord with the experimental observations of the examined molecules.eninfo:eu-repo/semantics/closedAccessone-photon absorptiontwo-photon absorptionsecond hyperpolarizabilitythird-order susceptibilityZ-scan techniqueConference ObjectN/AWOS:000333178300287N/A