Spin-Hall Effect of Cylindrical Vector Vortex Beams
Spin-Hall effect (SHE) of light is one of the main manifestations of the spin-orbit interaction of photons, and has been extensively studied for optical beams with homogeneous polarization. Here, we present a theoretical study of the SHE of cylindrical vector vortex beams (CVVBs) possessing inhomoge...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/10/12/1356 |
| _version_ | 1827573801099984896 |
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| author | Xuyao Zhang Shuo Wang Jinhong Liu Jinze Wu Jinhong Li |
| author_facet | Xuyao Zhang Shuo Wang Jinhong Liu Jinze Wu Jinhong Li |
| author_sort | Xuyao Zhang |
| collection | DOAJ |
| description | Spin-Hall effect (SHE) of light is one of the main manifestations of the spin-orbit interaction of photons, and has been extensively studied for optical beams with homogeneous polarization. Here, we present a theoretical study of the SHE of cylindrical vector vortex beams (CVVBs) possessing inhomogeneous polarization. We derive the analytical expressions of the SHE of CVVBs reflected and refracted at a dielectric interface with radial and azimuthal polarization of incidence. The spin-dependent shifts of the SHE of light linearly depend on the topological charge of the CVVBs. In contrast to the conventional SHE of horizontally or vertically polarized beams, the SHE shifts of the CVVBs are asymmetrical when the topological charge is nonzero. This asymmetry results in the transverse Imbert–Fedorov (IF) shifts that are proportional to the topological charge. Furthermore, based on weak measurement, we propose an experimental scheme to enhance the SHE and related IF shifts with proper pre- and post-selection polarization states. Our results advance the study of the SHE of structured light and may find applications in SHE-based techniques such as precision measurement. |
| first_indexed | 2024-03-08T20:26:22Z |
| format | Article |
| id | doaj.art-badf762b5a7b4e699e4a0be34bcb45b2 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-08T20:26:22Z |
| publishDate | 2023-12-01 |
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| spelling | doaj.art-badf762b5a7b4e699e4a0be34bcb45b22023-12-22T14:32:54ZengMDPI AGPhotonics2304-67322023-12-011012135610.3390/photonics10121356Spin-Hall Effect of Cylindrical Vector Vortex BeamsXuyao Zhang0Shuo Wang1Jinhong Liu2Jinze Wu3Jinhong Li4Shanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaShanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaDepartment of Science, Taiyuan Institute of Technology, Taiyuan 030008, ChinaShanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaShanxi Center of Technology Innovation for Light Manipulations and Applications, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaSpin-Hall effect (SHE) of light is one of the main manifestations of the spin-orbit interaction of photons, and has been extensively studied for optical beams with homogeneous polarization. Here, we present a theoretical study of the SHE of cylindrical vector vortex beams (CVVBs) possessing inhomogeneous polarization. We derive the analytical expressions of the SHE of CVVBs reflected and refracted at a dielectric interface with radial and azimuthal polarization of incidence. The spin-dependent shifts of the SHE of light linearly depend on the topological charge of the CVVBs. In contrast to the conventional SHE of horizontally or vertically polarized beams, the SHE shifts of the CVVBs are asymmetrical when the topological charge is nonzero. This asymmetry results in the transverse Imbert–Fedorov (IF) shifts that are proportional to the topological charge. Furthermore, based on weak measurement, we propose an experimental scheme to enhance the SHE and related IF shifts with proper pre- and post-selection polarization states. Our results advance the study of the SHE of structured light and may find applications in SHE-based techniques such as precision measurement.https://www.mdpi.com/2304-6732/10/12/1356Spin-Hall effect of lightcylindrical vector vortex beamsImbert–Fedorov shiftweak measurement |
| spellingShingle | Xuyao Zhang Shuo Wang Jinhong Liu Jinze Wu Jinhong Li Spin-Hall Effect of Cylindrical Vector Vortex Beams Photonics Spin-Hall effect of light cylindrical vector vortex beams Imbert–Fedorov shift weak measurement |
| title | Spin-Hall Effect of Cylindrical Vector Vortex Beams |
| title_full | Spin-Hall Effect of Cylindrical Vector Vortex Beams |
| title_fullStr | Spin-Hall Effect of Cylindrical Vector Vortex Beams |
| title_full_unstemmed | Spin-Hall Effect of Cylindrical Vector Vortex Beams |
| title_short | Spin-Hall Effect of Cylindrical Vector Vortex Beams |
| title_sort | spin hall effect of cylindrical vector vortex beams |
| topic | Spin-Hall effect of light cylindrical vector vortex beams Imbert–Fedorov shift weak measurement |
| url | https://www.mdpi.com/2304-6732/10/12/1356 |
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