Design and Fabrication of a Holographic Radial Polarization Converter
| Autor: | Fan-Hsi Hsu, Chien-Yuan Han, Jing-Heng Chen, Ken-Yuh Hsu, Kun-Huang Chen, Chien-Hung Yeh, Hung-Lung Tseng |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:Applied optics. Photonics
Diffraction Fabrication Materials science Holography Physics::Optics 02 engineering and technology Diffraction efficiency 01 natural sciences law.invention 010309 optics Planar Optics coupled wave theory law 0103 physical sciences Radial polarization radial polarization Radiology Nuclear Medicine and imaging volume gratings Instrumentation business.industry lcsh:TA1501-1820 Volume hologram polarization-selective devices 021001 nanoscience & nanotechnology Ray Atomic and Molecular Physics and Optics 0210 nano-technology business holographic optical elements |
| Zdroj: | Photonics Volume 7 Issue 4 Photonics, Vol 7, Iss 85, p 85 (2020) |
| ISSN: | 2304-6732 |
| DOI: | 10.3390/photonics7040085 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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