Abstract: One-dimensional photonic crystal with a defect consisting of anisotropic media and isotropic media is designed. The transmittance of s light and p light is calculated through the eigen matrix method. Due to the splitter of the defect modes for s light and p light, this structure can be used as a polarization beam splitter. This kind of polarization beam splitter has high extinction rate and transmittance, and will be used as a good optical device in the future.

Key words: One-dimensional photonic crystal with a defect consisting of anisotropic media and isotropic media is designed. The transmittance of s light and p light is calculated through the eigen matrix method. Due to the splitter of the defect modes for s light and p light, this structure can be used as a polarization beam splitter. This kind of polarization beam splitter has high extinction rate and transmittance, and will be used as a good optical device in the future.