Effectively suppressed reflected photonic spin Hall effect
The photonic spin Hall effect can engender transverse spatial and angular displacements in both transmission and reflection, with significant applications in optical imaging, edge detection, and the development of spin-based nanophotonic devices. While previous research has focused on enhancing the...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2025-03-01
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| Series: | Nanophotonics |
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| Online Access: | https://doi.org/10.1515/nanoph-2025-0089 |
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| author | Sheng Lijuan Xu Zixiao Cao Yong Tan Yawei Ling Xiaohui Zhou Xinxing |
| author_facet | Sheng Lijuan Xu Zixiao Cao Yong Tan Yawei Ling Xiaohui Zhou Xinxing |
| author_sort | Sheng Lijuan |
| collection | DOAJ |
| description | The photonic spin Hall effect can engender transverse spatial and angular displacements in both transmission and reflection, with significant applications in optical imaging, edge detection, and the development of spin-based nanophotonic devices. While previous research has focused on enhancing the photonic spin Hall effect, suppression can be beneficial for photonic spin-switching, offering advantages such as increased speed and sensitivity in nanophotonic devices. In this study, we establish a quantitative correlation between the reflection coefficient and the transverse spatial and angular displacements of reflected light, as induced by the photonic spin Hall effect, grounded in electromagnetic theory. We find that the transverse spatial displacement of reflected light can be eliminated under the condition r
pp = −r
ss, where r denotes the reflection coefficient, and the first (second) superscript denotes the polarization of the reflected (incident) light. This condition applies to light with arbitrary polarization states, at arbitrary incident angles, and is independent of wavelength and beam waist. A similar outcome is obtained for the transverse angular displacement of the reflected light. Such distinctive displacements are attainable through the use of an electromagnetic interface that satisfies the reflected condition r
pp = −r
ss. Additionally, we provide a succinct overview of the methodologies for constructing reflective spin switches. |
| format | Article |
| id | doaj-art-897eb407e4e9441998befb86c7cd0476 |
| institution | OA Journals |
| issn | 2192-8614 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj-art-897eb407e4e9441998befb86c7cd04762025-08-20T02:11:58ZengDe GruyterNanophotonics2192-86142025-03-01147993100110.1515/nanoph-2025-0089Effectively suppressed reflected photonic spin Hall effectSheng Lijuan0Xu Zixiao1Cao Yong2Tan Yawei3Ling Xiaohui4Zhou Xinxing5College of Physics and Electronic Engineering, 12573Hengyang Normal University, Hengyang421002, ChinaKey Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha410081, ChinaCollege of Physics and Electronic Engineering, 12573Hengyang Normal University, Hengyang421002, ChinaCollege of Physics and Electronic Engineering, 12573Hengyang Normal University, Hengyang421002, ChinaCollege of Physics and Electronic Engineering, 12573Hengyang Normal University, Hengyang421002, ChinaKey Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha410081, ChinaThe photonic spin Hall effect can engender transverse spatial and angular displacements in both transmission and reflection, with significant applications in optical imaging, edge detection, and the development of spin-based nanophotonic devices. While previous research has focused on enhancing the photonic spin Hall effect, suppression can be beneficial for photonic spin-switching, offering advantages such as increased speed and sensitivity in nanophotonic devices. In this study, we establish a quantitative correlation between the reflection coefficient and the transverse spatial and angular displacements of reflected light, as induced by the photonic spin Hall effect, grounded in electromagnetic theory. We find that the transverse spatial displacement of reflected light can be eliminated under the condition r pp = −r ss, where r denotes the reflection coefficient, and the first (second) superscript denotes the polarization of the reflected (incident) light. This condition applies to light with arbitrary polarization states, at arbitrary incident angles, and is independent of wavelength and beam waist. A similar outcome is obtained for the transverse angular displacement of the reflected light. Such distinctive displacements are attainable through the use of an electromagnetic interface that satisfies the reflected condition r pp = −r ss. Additionally, we provide a succinct overview of the methodologies for constructing reflective spin switches.https://doi.org/10.1515/nanoph-2025-0089photonic spin hall effecteffectively suppressed photonic spin hall effectreflective spin switches |
| spellingShingle | Sheng Lijuan Xu Zixiao Cao Yong Tan Yawei Ling Xiaohui Zhou Xinxing Effectively suppressed reflected photonic spin Hall effect Nanophotonics photonic spin hall effect effectively suppressed photonic spin hall effect reflective spin switches |
| title | Effectively suppressed reflected photonic spin Hall effect |
| title_full | Effectively suppressed reflected photonic spin Hall effect |
| title_fullStr | Effectively suppressed reflected photonic spin Hall effect |
| title_full_unstemmed | Effectively suppressed reflected photonic spin Hall effect |
| title_short | Effectively suppressed reflected photonic spin Hall effect |
| title_sort | effectively suppressed reflected photonic spin hall effect |
| topic | photonic spin hall effect effectively suppressed photonic spin hall effect reflective spin switches |
| url | https://doi.org/10.1515/nanoph-2025-0089 |
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