Third-harmonic generation in polyvinylpirrolidone-based metallic complexes

Abstract

The third-order nonlinear susceptibilities of the aqueous solutions of polyvinylpirrolidone doped with iron and zinc were studied by the method of third-harmonic generation with 1064-nm Nd:YAG laser radiation. The efficiencies of transformation into the third harmonic in these metallic complexes were 8×10−7 and 5×10−7, respectively. To determine the role of the Kerr effect in the transformation process, the nonlinear refractive index of the iron-doped polyvinylpirrolidone solution was measured by the Z-scan method and a value of n 2=−6.7×10−13 cgs unit was obtained.

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DOI

10.1134/1.1509835

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