| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Mode and orbital angular momentum controlling of nonlocal solitons by anisotropic diffraction |
| Junying Zhu(朱俊英)1, Qing Wang(王清)2, and Jianning Wei(魏健宁)2,† |
1 School of Mechanical & Intelligent Manufacturing, Jiujiang University, Jiujiang 334000, China;
2 Institute of Nonlinear Optics, College of Science, Jiujiang University, Jiujiang 334000, China |
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Abstract This study presents a novel approach to control the mode transform between Laguerre-Gaussian solitons and Hermite-Gaussian solitons by designing anisotropic diffraction in nonlocal medium. The anisotropic diffraction can introduce differential phase shifts and amplitude modulations to the optical field, and then leading to the transform of the soliton mode from one to another, while the accompanying orbital angular momentum exhibits a periodic variation. When the anisotropic diffraction is designed to become isotropic at the desired distance, various mode solitons with different rotation speeds and directions can be generated, which implies that the mode transform process and the change law of orbital angular momentum can be controlled. This finding establishes a versatile platform for nonlinear mode transform, offering new possibilities for applications in optical signal processing, topological photonics, optical micro-manipulation, and so on.
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Received: 08 July 2025
Revised: 25 August 2025
Accepted manuscript online: 02 September 2025
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PACS:
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42.65.-k
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(Nonlinear optics)
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42.50.Md
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(Optical transient phenomena: quantum beats, photon echo, free-induction decay, dephasings and revivals, optical nutation, and self-induced transparency)
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42.65.Tg
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(Optical solitons; nonlinear guided waves)
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42.81.Dp
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(Propagation, scattering, and losses; solitons)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 12265015). |
Corresponding Authors:
Jianning Wei
E-mail: weijianning@jju.edu.cn
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Cite this article:
Junying Zhu(朱俊英), Qing Wang(王清), and Jianning Wei(魏健宁) Mode and orbital angular momentum controlling of nonlocal solitons by anisotropic diffraction 2026 Chin. Phys. B 35 044202
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