Polarization multiplexing and bifocal optical vortex metalens
In this article, we demonstrate several optical vortex metalens (OVMs) based on the Pancharatnam–Berry (PB) geometric phase concept utilizing silicon nanobricks. The nanostructured OVMs are designed via coalescing the phase profiles of metalens and vortex phase plate, which can produce and focus the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-06-01
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| Series: | Results in Physics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379720304964 |
| _version_ | 1818020337074307072 |
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| author | Wei Wang Chong Guo Zehan Zhao Jing Li Yan Shi |
| author_facet | Wei Wang Chong Guo Zehan Zhao Jing Li Yan Shi |
| author_sort | Wei Wang |
| collection | DOAJ |
| description | In this article, we demonstrate several optical vortex metalens (OVMs) based on the Pancharatnam–Berry (PB) geometric phase concept utilizing silicon nanobricks. The nanostructured OVMs are designed via coalescing the phase profiles of metalens and vortex phase plate, which can produce and focus the vortex beam simultaneously. Through analyzing four single-focal OVMs suitable for left circularly polarized (LCP) or right circularly polarized (RCP) incident light respectively, we find that the topological sign of vortex light is strongly associated with polarization state of incident light. Through multiplexing two OVMs only suitable for one kind of circularly polarized light, we design one polarization multiplexing OVM, which can focus different circularly polarized (CP) vortex beam to the same position. We also design one longitudinal bifocal OVM, which can focus LCP vortex beam to the different positions. Thus, these OVMs have the promising applications in integrated optics, classical and quantum optics, and vortex optics. |
| first_indexed | 2024-04-14T08:04:42Z |
| format | Article |
| id | doaj.art-de2f11fcacec412eb98f0fab8057c7bb |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-04-14T08:04:42Z |
| publishDate | 2020-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-de2f11fcacec412eb98f0fab8057c7bb2022-12-22T02:04:48ZengElsevierResults in Physics2211-37972020-06-0117103033Polarization multiplexing and bifocal optical vortex metalensWei Wang0Chong Guo1Zehan Zhao2Jing Li3Yan Shi4Corresponding author.; Department of Mathematics and Physics, Shijiazhuang Tiedao University, Shijiazhuang 050043, People’s Republic of ChinaDepartment of Mathematics and Physics, Shijiazhuang Tiedao University, Shijiazhuang 050043, People’s Republic of ChinaDepartment of Mathematics and Physics, Shijiazhuang Tiedao University, Shijiazhuang 050043, People’s Republic of ChinaDepartment of Mathematics and Physics, Shijiazhuang Tiedao University, Shijiazhuang 050043, People’s Republic of ChinaDepartment of Mathematics and Physics, Shijiazhuang Tiedao University, Shijiazhuang 050043, People’s Republic of ChinaIn this article, we demonstrate several optical vortex metalens (OVMs) based on the Pancharatnam–Berry (PB) geometric phase concept utilizing silicon nanobricks. The nanostructured OVMs are designed via coalescing the phase profiles of metalens and vortex phase plate, which can produce and focus the vortex beam simultaneously. Through analyzing four single-focal OVMs suitable for left circularly polarized (LCP) or right circularly polarized (RCP) incident light respectively, we find that the topological sign of vortex light is strongly associated with polarization state of incident light. Through multiplexing two OVMs only suitable for one kind of circularly polarized light, we design one polarization multiplexing OVM, which can focus different circularly polarized (CP) vortex beam to the same position. We also design one longitudinal bifocal OVM, which can focus LCP vortex beam to the different positions. Thus, these OVMs have the promising applications in integrated optics, classical and quantum optics, and vortex optics.http://www.sciencedirect.com/science/article/pii/S2211379720304964MetasurfacesMetalensesWavefront controlVortex light |
| spellingShingle | Wei Wang Chong Guo Zehan Zhao Jing Li Yan Shi Polarization multiplexing and bifocal optical vortex metalens Results in Physics Metasurfaces Metalenses Wavefront control Vortex light |
| title | Polarization multiplexing and bifocal optical vortex metalens |
| title_full | Polarization multiplexing and bifocal optical vortex metalens |
| title_fullStr | Polarization multiplexing and bifocal optical vortex metalens |
| title_full_unstemmed | Polarization multiplexing and bifocal optical vortex metalens |
| title_short | Polarization multiplexing and bifocal optical vortex metalens |
| title_sort | polarization multiplexing and bifocal optical vortex metalens |
| topic | Metasurfaces Metalenses Wavefront control Vortex light |
| url | http://www.sciencedirect.com/science/article/pii/S2211379720304964 |
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