SEARCH Articles Figures Tables Nonlinear optical susceptibilities Nonlinear optics third-order nonlinearity Nonlinear susceptibility Nonlinear third order Nonlinear third-order optical nonlinearity Optical susceptibility Optical third-order Third-order Third-order nonlinear optical Third-order nonlinear optical susceptibilities Third-order nonlinear optics Third-order nonlinear susceptibility Third-order nonlinearities Third-order optical nonlinearities Third-order optical nonlinearity Third-order susceptibilities