[The enhancement of electric field distribution in one-dimensional metallic-dielectric photonic crystals].

The authors theoretically study the transmission properties and electric filed distribution in one-dimensional metallic-dielectric photonic crystals with the transfer matrix method. The results show that the physical properties can be improved considerably after the introduction of antireflection layer and optimizing structural parameters, e. g., 77% electric file distribution in metal layers can be obtained under 19% transmittance, and 72% transmittance can be obtained with 28% electric field distribution in metal layers. These photonic crystal structures, whose transmission properties and electric field in metal layers are tunable, could be widely used in nonlinear photon device based on the enhancement of electric field in metal layers.