Rudresha, B.J.Badekai Ramachandra, B.R.Ramakrishna, D.Anthony, J.K.Lee, H.W.Rotermund, F.2026-02-052012Optics and Laser Technology, 2012, 44, 4, pp. 1180-1183303992https://doi.org/10.1016/j.optlastec.2011.11.009https://idr.nitk.ac.in/handle/123456789/27009A femtosecond differential optical Kerr gate (DOKG) and Z-scan techniques, have been applied to investigate the third-order optical nonlinearity of composite film of the coordination complex [PdLPPh <inf>3</inf>] (L=N-(2-pyridyl)-N'-(salicylidene)hydrazine, PPh <inf>3</inf>=triphenylphosphine) . Film exhibits superior nonlinear optical properties in the near-infrared spectral region. The nonlinear response time and third-order nonlinear optical susceptibility of complex were found to be?90 fs and 3.9×10 -10 esu, respectively. The Z-scan result shows that saturable absorption property of the film and its nonlinear absorption coefficient of the sample was found to be -23 cm/GW. © 2011 Elsevier Ltd. All rights reserved.Coordination complexFemtosecondsNear-infrared spectral regionsNon-linear optical propertiesNonlinear absorption coefficientNonlinear optical studiesNonlinear response timeOptical Kerr gateSaturable absorptionSchiff base complexesThird order nonlinear optical susceptibilityThird-order optical nonlinearitiesTriphenyl phosphinesZ-scan techniqueComposite filmsCoordination reactionsFunctional groupsNonlinear opticsOptical propertiesPalladiumPalladium compoundsOptical films