1.School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai, China
2.Shandong Provincial Engineering and Technical Center of Light Manipulations and Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan, China
3.Collaborative Innovation Center of Light Manipulations and Applications, Shandong Normal University, Jinan, China
4.Zhejiang Key Laboratory of 3D Micro/Nano Fabrication and Characterization, Department of Electronic and Information Engineering, School of Engineering, Westlake University, Hangzhou, Zhejiang, China
5.Westlake Institute for Optoelectronics, Fuyang, Hangzhou, China
6.Zhangjiang Laboratory, Shanghai, China
7.International Institute for Sustainability with Knotted Chiral Meta Matter (WPI-SKCM2), Hiroshima University, Higashihiroshima, Hiroshima, Japan
Xinrui Lei (xrlei@usst.edu.cn)
Qiwen Zhan (qwzhan@usst.edu.cn)
收稿:2025-04-11,
修回:2025-08-14,
录用:2025-08-31,
网络出版:2025-09-16,
纸质出版:2025-11-30
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Houan Teng, Xin Liu, Nianjia Zhang, 等. Construction of optical spatiotemporal skyrmions[J]. Light: Science & Applications, 2025,14(11):3496-3505.
Teng, H. et al. Construction of optical spatiotemporal skyrmions. Light: Science & Applications, 14, 3496-3505 (2025).
Houan Teng, Xin Liu, Nianjia Zhang, 等. Construction of optical spatiotemporal skyrmions[J]. Light: Science & Applications, 2025,14(11):3496-3505. DOI: 10.1038/s41377-025-02028-0.
Teng, H. et al. Construction of optical spatiotemporal skyrmions. Light: Science & Applications, 14, 3496-3505 (2025). DOI: 10.1038/s41377-025-02028-0.
The creation and manipulation of photonic skyrmions provide a novel degree of freedom for light-matter interactions
optical communication and nanometrology. Since the localized vortex within skyrmions arises from the twist and curl of the phase structure
the orbital angular momentum of light is essential for their construction. While numerous skyrmionic textures have been proposed
they are formed within the spatial domain and induced by the longitudinal orbital angular momentum. Here we theoretically propose and experimentally observe spatiotemporal skyrmions within a picosecond pulse wavepacket
generated through vectorial sculpturing of spatiotemporal wavepackets. The skyrmionic textures emerge within the spatiotemporal distribution of a vector field encompass all possible polarization states. Constructed upon the transverse orbital angular momentum
spatiotemporal skyrmions
in contrast to spatial skyrmions
exhibit no helical twisting perpendicular to the skyrmion plane
demonstrating potential stability against deformations or perturbations. These results expand the skyrmion family and offer new insights into optical quasiparticles
potentially leading to advanced applications in optical metrology
sensing
and data storage.
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