Simple fabrication of nonlinear gratings in polymer film using simultaneous process of emboss heating and thermal poling

We introduce a simple fabrication technique of nonlinear polymeric optical waveguide patterns based on the simultaneous process of emboss heating and poling. The polyimide film on the nickel plate was used as master grating. The condition of the fabricated pattern depends on removal temperature and the stability of the master grating is investigated. The submicron surface relief grating with chi ((2)) is realized in the NLO polymer film.