2026年7月31日（周五）15:00，物质楼C601
报告嘉宾 Yijie Shen教授 | |
报告题目：Topological light for communicating, sensing, and trapping | |
个人介绍： Yijie Shen is a Nanyang Assistant Professor in School of Physical and Mathematical Sciences & School of Electrical and Electronic Engineering, Nanyang Technological University. He was previously a Marie Curie Senior Research Fellow in Optoelectronics Research Centre, University of Southampton, UK. He received the Ph.D. degree in optical engineering at the Department of Precision Instrument, Tsinghua University, China, in 2019. He received the B.S. degree in mechanical engineering and automation from South China University of Technology, China, in 2015. During Mar.-Jun. 2019, he was invited as a visiting researcher in University of the Witwatersrand (Wits Univ.), Johannesburg, South Africa. He is a member of the Optical Society of America (Optica), Chinese Optical Society (COS), and Chinese Society of Theoretical and Applied Mechanics. He is an invited Affiliate Member of The International Institute for Sustainability with Knotted Chiral Meta Matter (SKCM2). He won the Wang Da-Heng Optics Award (COS, China) in 2019, Rising Stars in Optics 2024, IOP, iSPN 2025 Young Researcher Award, and 2025 Rising Stars of Light. He was recognized as a Journal Ambassador in Singapore, Chinese Laser Press, and honorary Rosalind Member of London Journals Press. He is an Editorial Board Member and Advisory Panel Member of Journal of Optics; Associate Editor: Advanced Photonics Nexus, Nanophotonics, Photonics Research, Light Manipulation and Applications, etc. He is committee member/organizer of conferences FiO, PIERS, JEMS. He has published more than 100 papers in high-impact journals including Nature, Nature Photonics, Nature Physics, Nature Electronics, Science Advances, etc., with nearly 10000 citations. |
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Abstract
Topological complex electromagnetic waves give access to nontrivial light-matter interactions and provide additional degrees of freedom for information transfer. For instance, topologically stable quasiparticles or skyrmions have been demonstrated in quantum fields, solid-state physics, and magnetic materials, but only recently observed in photonic fields, triggering fast expanding research across different spectral ranges and applications. Here I introduce an extended family of photonic skyrmions within a unified framework, starting from fundamental theories to experimental generation and topological control in spatiotemporally structured light. I will further highlight generalized classes of structured wave topological quasiparticles beyond optical skyrmions and outline their exotic topological robust properties, emerging applications, future trends, and open challenges.
邀请人：彭晨晖 教授