Second-order non-linear optical response in LB films for the metal complexes

The complexes with long alkyl chains were synthesized. Langmuir-Blodgett (LB) films of the compounds were also prepared. The second harmonic generation (SHG) were estimated for the LB films formed by the metal complexes with long alkyl chains in LB film. The order of the intensity for the SHG related with the number of unpaired d electrons or the d electron configurations. The goal of this study is switching of NLO response by using of SCO and LIESST effect.