Optical nonlinearity of an open-shell and degenerate π-conjugated polymer: poly(4-oxyphenyl-1,2-phenylenevinylene) radical

Abstract

Third-order nonlinear optical susceptibility is enhanced by three orders of magnitude for the degenerate and high-spin ground state conjugated polymer, poly(4-oxyphenyl-1,2-phenylenevinylene), as compared with a precursor conjugated polymer with a closed-shell configuration, in a z-scan measurement.

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