Natural Crystal Structure for Generating Raman‐Like Orbital Angular Momentum States
Abstract Creation of structured light at‐source with determinate orbital angular momentum (OAM) states is a fascinating branch of modern optics, owing to their integrability, wavelength insensitivity, and high mode purity. However, mode degeneracy in spatially column‐symmetric cylindrical coordinate...
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| Format: | Article |
| Language: | English |
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Wiley
2025-06-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202500377 |
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| author | Tianxiang Meng Changsheng Zheng Yongguang Zhao Haohai Yu Huaijin Zhang |
| author_facet | Tianxiang Meng Changsheng Zheng Yongguang Zhao Haohai Yu Huaijin Zhang |
| author_sort | Tianxiang Meng |
| collection | DOAJ |
| description | Abstract Creation of structured light at‐source with determinate orbital angular momentum (OAM) states is a fascinating branch of modern optics, owing to their integrability, wavelength insensitivity, and high mode purity. However, mode degeneracy in spatially column‐symmetric cylindrical coordinate systems leads to a total zero OAM states which seriously limits their development and applications. Here, a strategy is proposed for symmetry breaking of the degenerate OAM states relying on the natural anisotropy of crystal gain, to select the handedness of the spatial spiral phase front and further tunable Raman‐like OAM states by thermal‐driven, experimentally realized arbitrary OAM states from −2ћ to ћ. The concept presented herein clarifies the contribution of intrinsic crystal property to the OAM states and opens a new route for an at‐source solution of structure light with high integrability and controllable OAM states. |
| format | Article |
| id | doaj-art-e3e7cd0a22954d92acfe4e7223781532 |
| institution | DOAJ |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-e3e7cd0a22954d92acfe4e72237815322025-08-20T03:22:15ZengWileyAdvanced Science2198-38442025-06-011223n/an/a10.1002/advs.202500377Natural Crystal Structure for Generating Raman‐Like Orbital Angular Momentum StatesTianxiang Meng0Changsheng Zheng1Yongguang Zhao2Haohai Yu3Huaijin Zhang4State Key Laboratory of Crystal Materials and Institute of Crystal Materials Shandong University Jinan 250100 ChinaState Key Laboratory of Crystal Materials and Institute of Crystal Materials Shandong University Jinan 250100 ChinaState Key Laboratory of Crystal Materials and Institute of Crystal Materials Shandong University Jinan 250100 ChinaState Key Laboratory of Crystal Materials and Institute of Crystal Materials Shandong University Jinan 250100 ChinaState Key Laboratory of Crystal Materials and Institute of Crystal Materials Shandong University Jinan 250100 ChinaAbstract Creation of structured light at‐source with determinate orbital angular momentum (OAM) states is a fascinating branch of modern optics, owing to their integrability, wavelength insensitivity, and high mode purity. However, mode degeneracy in spatially column‐symmetric cylindrical coordinate systems leads to a total zero OAM states which seriously limits their development and applications. Here, a strategy is proposed for symmetry breaking of the degenerate OAM states relying on the natural anisotropy of crystal gain, to select the handedness of the spatial spiral phase front and further tunable Raman‐like OAM states by thermal‐driven, experimentally realized arbitrary OAM states from −2ћ to ћ. The concept presented herein clarifies the contribution of intrinsic crystal property to the OAM states and opens a new route for an at‐source solution of structure light with high integrability and controllable OAM states.https://doi.org/10.1002/advs.202500377handedness selectionnatural of crystalorbital angular momentum of photonRaman‐like OAM statesthermal‐driven mode competition |
| spellingShingle | Tianxiang Meng Changsheng Zheng Yongguang Zhao Haohai Yu Huaijin Zhang Natural Crystal Structure for Generating Raman‐Like Orbital Angular Momentum States Advanced Science handedness selection natural of crystal orbital angular momentum of photon Raman‐like OAM states thermal‐driven mode competition |
| title | Natural Crystal Structure for Generating Raman‐Like Orbital Angular Momentum States |
| title_full | Natural Crystal Structure for Generating Raman‐Like Orbital Angular Momentum States |
| title_fullStr | Natural Crystal Structure for Generating Raman‐Like Orbital Angular Momentum States |
| title_full_unstemmed | Natural Crystal Structure for Generating Raman‐Like Orbital Angular Momentum States |
| title_short | Natural Crystal Structure for Generating Raman‐Like Orbital Angular Momentum States |
| title_sort | natural crystal structure for generating raman like orbital angular momentum states |
| topic | handedness selection natural of crystal orbital angular momentum of photon Raman‐like OAM states thermal‐driven mode competition |
| url | https://doi.org/10.1002/advs.202500377 |
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