Third-order nonlinear optical properties of pyridine-and ferrocene-containing polyazines

摘要

Third-order nonlinear optical susceptibilities X~(3) of pyridine and ferrocene-containing polyazines have been measured by the third harmonic generation in the wavelength region 1.0 μm to 1.95 μm. The X~(3) (-3ω, ω, ω, ω) values of 7.75×10~-12 esu at 1.5 μm for pyridine-containing polyazine and 2.23×10~-11 esu at 1.8 μm for ferrocen-containing polyazine were observed. Third order optical nonlinearities of polyazines with and without aromatic units in the π-conjugated backbone are compared to develop a structure property relationship.