Abstract
Single beam z-scan measurements have been made on films containing amorphous polycarbonate and the zwitterionic chromophore, PYR-3, that has a very high second order nonlinear optical (NLO) figure of merit. The third order NLO figure of merit is ≈1.6 at 1030 nm and is comparable to that found in organic compounds optimized for high n2 values. The two-photon absorption coefficient is 2.1×10−12 m/W, which is very low and advantageous for NLO device applications. The third order NLO refractive index is −1.4×10−18 m2/W.
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