Topologically protected measurement of orbital angular momentum of light
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866929522392170496 |
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| author | Zhu, Junfan Wang, An Liu, Yurong Gao, Fuhua Zhang, Zhiyou |
| author_facet | Zhu, Junfan Wang, An Liu, Yurong Gao, Fuhua Zhang, Zhiyou |
| contents | We develop a weak measurement scheme for measuring orbital angular momentum (OAM) of light based on the global topology in wave function. We introduce the spin-orbit coupling to transform the measurement of OAM to the pre- and postselected measurement of polarization. The OAM number can be precisely and promptly recognized using single-shot detection without the need for spatial resolution. More significantly, the measurement results exhibit topological robustness under random phase perturbations. This scheme has the potential to be applied as a paradigm in the OAM-based optical computing, metrology and communication. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_00331 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Topologically protected measurement of orbital angular momentum of light Zhu, Junfan Wang, An Liu, Yurong Gao, Fuhua Zhang, Zhiyou Optics We develop a weak measurement scheme for measuring orbital angular momentum (OAM) of light based on the global topology in wave function. We introduce the spin-orbit coupling to transform the measurement of OAM to the pre- and postselected measurement of polarization. The OAM number can be precisely and promptly recognized using single-shot detection without the need for spatial resolution. More significantly, the measurement results exhibit topological robustness under random phase perturbations. This scheme has the potential to be applied as a paradigm in the OAM-based optical computing, metrology and communication. |
| title | Topologically protected measurement of orbital angular momentum of light |
| topic | Optics |
| url | https://arxiv.org/abs/2410.00331 |