An alternative design strategy for thin photorefractive polymer structures


  • This work has been carried out under the European contract No. CII*-CT94-0039 and Spanish CICYT project TIC96-0068. One of us (M.A.) gratefully acknowledges a F.P.U. fellowship from the Spanish Ministerio de Education y Ciencia.


Optimization of polymer photorefractive materials is complicated in conventional devices because the photorefractive material usually contains both a charge photosensitizer and a nonlinear chromophore and optimization can lead to compatibility problems. In the device design presented here, the photoconductive and electrooptic components are separated, allowing them to be optimized individually. The design strategy is described and analyzed theoretically. Its limitations are pointed out and example measures of performance given.