Third-order optical nonlinear studies of Cobalt (II) Schiff base complex bearing triphenylphosphine using Differential Optical Kerr Gate and Z-scan studies
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Date
2010
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Abstract
The third-order optical nonlinearity of the composite film of coordination complex [CoLPPh<inf>3</inf>Cl] (L = N-(2-pyridyl)-N?-(salicylidene)hydrazine) and PMMA has been investigated by using Differential Optical Kerr Gate (DOKG) and Z-scan measurements. Large value of the third-order nonlinear optical susceptibility (?(3)) of the order of 10-10 esu was measured and its nonlinear response time was found to be faster than or comparable to the laser pulse width (90 fs) used. The single beam Z-scan technique was used to investigate the nonlinear absorption property of the composite near 800 nm. The sample exhibit saturable absorption. The nonlinear absorption coefficient of sample is found to be -32 cm/GW. © 2010 Elsevier B.V. All rights reserved.
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Keywords
Coordination complex, Laser pulse width, Nonlinear absorption coefficient, Nonlinear absorption properties, Nonlinear response time, Optical Kerr gate, Optical nonlinear, Optical nonlinearity, Pyridyl, Saturable absorption, Schiff base complexes, Schiff-base, Single beam, Third order nonlinear optical susceptibility, Third-order, Third-order optical nonlinearities, Triphenyl phosphines, Z-scan, Z-scan measurement, Z-scan study, Z-scan technique, Absorption, Cobalt, Cobalt compounds, Composite films, Coordination reactions, Functional groups, Pulsed laser applications, Nonlinear optics
Citation
Synthetic Metals, 2010, 160, 13-14, pp. 1584-1586