Design and Fabrication of a Holographic Radial Polarization Converter

Abstract

Radial polarization converters can convert an incident light into a radially polarized light, which is beneficial in a variety of applications. In this paper, a new design of holographic radial polarization converter is proposed which consists of eight space-variant polarization-selective volume hologram gratings. According to the coupled wave theory, a feasible design of the polarization-selective volume hologram gratings was described. The prism-hologram-prism sandwiched recording method was adopted for the recording. The s- and p-polarization diffraction efficiencies of the fabricated polarization-selective volume hologram gratings at 443.29 nm are 90.83% and 22.09%, respectively. The operation bandwidth is about 4.42 nm. A prototype of holographic radial polarization converter was successfully assembled and tested. Due to the introduction of volume hologram gratings, this design should have the advantages of high diffraction efficiency, narrow band, compactness, and planar configuration, meaning it is especially suitable for low-cost mass production and has high application potential in related fields.

Polarization conversion and lateral shifts in multilayered structure with finitely-gapped topological surface states

“…Polarization is one of the most fundamental properties of light, and it is always desirable to fully manipulate the polarization state of electromagnetic wave. Investigations on the transition between different polarization states have been widely carried out [28][29][30]. Traditional methods to control the polarization state involve use of, e.g.…”