|
|
|
|
T. Fukaya, T. Kamata, and M. Mizuno
[Synth. Met., Vol.71, pp.1693-1694, 1995]
Third order optical nonlinearities of linear metal chains, which are formed crystals and vacuum evaporated thin films of metal-dioxime complexes, are analyzed by using CNDO/SD-CI calculations. Intermolecular exicitonic states are revealed to act very important rolls to the excellent nonlinearities of the linear metal chains. The molecular hyperpolarizabilities g increase with seventh power of the metal chain length.
Fig. 1. Plots of estimated gamma values versus number of metals, which consist metal chains, Four intervals of metal spacing are considered. Solid line shows a proportional line to the 7th power of the number of metals. Calculations of 100 CI are used.