Real-time observation of the spin Hall effect of light using metasurface-enabled single-shot weak measurements
Abstract The spin Hall effect of light (SHEL), the transverse splitting of light into two circularly polarized components via refraction or reflection, offers high-precision, nondestructive inspection of unknown interfaces when combined with a signal amplification technique called weak measurement....
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-03-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-56728-7 |
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| author | Jinkyeong Lee Jaekyung Kim Sangmin Shim Younghwan Yang Jeonghoon Choi Junsuk Rho Dasol Lee Minkyung Kim |
| author_facet | Jinkyeong Lee Jaekyung Kim Sangmin Shim Younghwan Yang Jeonghoon Choi Junsuk Rho Dasol Lee Minkyung Kim |
| author_sort | Jinkyeong Lee |
| collection | DOAJ |
| description | Abstract The spin Hall effect of light (SHEL), the transverse splitting of light into two circularly polarized components via refraction or reflection, offers high-precision, nondestructive inspection of unknown interfaces when combined with a signal amplification technique called weak measurement. However, its application in detecting dynamics is limited due to its multistep process. Here, we condense the procedure into a single step, enabling calibration-free, single-shot measurement of the SHEL by replacing one component of the conventional setup with a polarization beamsplitting metasurface. Our approach allows for instantaneous evaluation of the SHEL, even with fluctuations in the original beam position. As proof of concept, we apply metasurface-assisted weak measurements to both static and dynamic scenarios, where the experimental results obtained from a single captured image demonstrate nice agreement with theory. This real-time observation of the SHEL highlights its potential for high-precision monitoring of dynamic processes such as biomedical sensing and chemical analysis. |
| format | Article |
| id | doaj-art-d4a067e207574b7f940ef9dc51169112 |
| institution | DOAJ |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-d4a067e207574b7f940ef9dc511691122025-08-20T02:41:33ZengNature PortfolioNature Communications2041-17232025-03-011611910.1038/s41467-025-56728-7Real-time observation of the spin Hall effect of light using metasurface-enabled single-shot weak measurementsJinkyeong Lee0Jaekyung Kim1Sangmin Shim2Younghwan Yang3Jeonghoon Choi4Junsuk Rho5Dasol Lee6Minkyung Kim7School of Mechanical and Robotics Engineering, Gwangju Institute of Science and Technology (GIST)Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH)Department of Biomedical Engineering, Yonsei UniversityDepartment of Mechanical Engineering, Pohang University of Science and Technology (POSTECH)School of Mechanical and Robotics Engineering, Gwangju Institute of Science and Technology (GIST)Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH)Department of Biomedical Engineering, Yonsei UniversitySchool of Mechanical and Robotics Engineering, Gwangju Institute of Science and Technology (GIST)Abstract The spin Hall effect of light (SHEL), the transverse splitting of light into two circularly polarized components via refraction or reflection, offers high-precision, nondestructive inspection of unknown interfaces when combined with a signal amplification technique called weak measurement. However, its application in detecting dynamics is limited due to its multistep process. Here, we condense the procedure into a single step, enabling calibration-free, single-shot measurement of the SHEL by replacing one component of the conventional setup with a polarization beamsplitting metasurface. Our approach allows for instantaneous evaluation of the SHEL, even with fluctuations in the original beam position. As proof of concept, we apply metasurface-assisted weak measurements to both static and dynamic scenarios, where the experimental results obtained from a single captured image demonstrate nice agreement with theory. This real-time observation of the SHEL highlights its potential for high-precision monitoring of dynamic processes such as biomedical sensing and chemical analysis.https://doi.org/10.1038/s41467-025-56728-7 |
| spellingShingle | Jinkyeong Lee Jaekyung Kim Sangmin Shim Younghwan Yang Jeonghoon Choi Junsuk Rho Dasol Lee Minkyung Kim Real-time observation of the spin Hall effect of light using metasurface-enabled single-shot weak measurements Nature Communications |
| title | Real-time observation of the spin Hall effect of light using metasurface-enabled single-shot weak measurements |
| title_full | Real-time observation of the spin Hall effect of light using metasurface-enabled single-shot weak measurements |
| title_fullStr | Real-time observation of the spin Hall effect of light using metasurface-enabled single-shot weak measurements |
| title_full_unstemmed | Real-time observation of the spin Hall effect of light using metasurface-enabled single-shot weak measurements |
| title_short | Real-time observation of the spin Hall effect of light using metasurface-enabled single-shot weak measurements |
| title_sort | real time observation of the spin hall effect of light using metasurface enabled single shot weak measurements |
| url | https://doi.org/10.1038/s41467-025-56728-7 |
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