DOMAIN INVERSION BY PULSE POLING IN POLYMER-FILMS

We report on an original technique for poling polymeric thin films, wh ich allowed us to obtain a second-order nonlinear inverted domain stru cture, which could be used for frequency-doubling waveguides under qua si-phase-matching condition. Measurements of the local value and orien tation of the electro-optic r(33) tensor component were performed by a reflection microscopic electro-optic ellipsometer, The measured param eters for the nonlinear structure induced in the polymeric film result to be consistent with the expected values. (C) 1998 American Institut e of Physics.