ZERO DISPERSION NONLINEAR-OPTICAL POLYMERIC MATERIALS CONTAINING STILBENE AND NAPHTHALOCYANINE DYES

We report the synthesis of terpolymers containing anomalous and normal dispersive dyes, silicon naphthalocyanine and oxynitrostilbene, respe ctively. It is shown by refractive index measurements that the indexes at the wavelengths 0.63 and 1.3 mum can be made equal by adjusting th e concentration of the anomalous dispersive dyes. However, the absorpt ion coefficient at 0.63 mum is too high for these materials to be usef ul for phase-matched second harmonic generation.