[摘要]：This work presents a three-layered thin film system to generate broadband polarization conversion. The enhanced polarization conversion in the prism coupling system is analyzed as a constructive interference effect of polarization coupled states. According to our analysis, an antireflection film that is used to reduce the multireflection in the anisotropic film and a compensation film that is used to reduce dispersion of propagation phase difference are applied on both sides of an anisotropic thin film to cause broadband polarization conversion. (c) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3546101]
