title: Design of a Binary Grating with Subwavelength Features that Acts as a Polarizing Beam Splitter.
abstract: A binary diffractive optical element, acting as a polarizing beam splitter, is proposed and analyzed. It behaves like a transmissive blazed grating, working on the first or the second diffraction order, depending on the polarization state of the incident radiation. The grating-phase profile required for both polarization states is obtained by means of suitably sized subwavelength groups etched in an isotropic dielectric medium. A rigorous electromagnetic analysis of the grating is presented, and numerical results concerning its performances in terms of diffraction efficiency as well as frequency and angular bandwidths are provided.
authors: L
authors: L
authors: Pajewski
authors: R
authors: R
authors: Borghi
authors: G
authors: G
authors: Schettini
authors: F
authors: F
authors: Frezza
authors: M
authors: M
authors: Santarsiero