Abstract
The third-order non-linear optical properties of evaporated thin films of d 8 transition metal complexes with dionedioxime have been estimated by third harmonic generation. They formed one-dimensional structures and showed large optical non-linearities. Resonance effects were observed for respective metal complexes. The maximum χ (3) value of 5.6 × 10 −11 esu was obtained at the near three-photon resonance wavelength for the platinum complex. The delocalized electrons in linear metal chains may be essential for exhibiting large non-linear optical effects.
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