We propose a novel broadband polarizing beam splitter with a compact sandwich structure that has a subwavelength grating in the quasi-static domain as the filling. The design is based on effective-medium theory an anisotropic thin-film theory, and the performance is investigated with rigorous coupled-wave theory. The design results show that the structure can provide a high polarization extinction ratio in a broad spectral range.
© 2004 Optical Society of America
Deer Yi, Yingbai Yan, Haitao Liu, Si Lu, and Guofan Jin, "Broadband polarizing beam splitter based on the form birefringence of a subwavelength grating in the quasi-static domain," Opt. Lett. 29, 754-756 (2004)