title: Broadband polarizing beam splitter based on the form birefringence of a subwavelength grating in the quasi-static domain.
abstract: 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.
authors.affiliation: State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084, China. yideer99@mails.tsinghua.edu.cn
authors.forename: Deer
authors.initials: D
authors.lastname: Yi
authors.forename: Yingbai
authors.initials: Y
authors.lastname: Yan
authors.forename: Haitao
authors.initials: H
authors.lastname: Liu
authors.forename: Si
authors.initials: S
authors.lastname: Lu
authors.forename: Guofan
authors.initials: G
authors.lastname: Jin