Abstract: Angular momenta of electromagnetic waves are important both in concepts and applications. In this webinar, I will systematically discuss two types of angular momenta, i.e., spin angular momentum and orbital angular momentum in various cases, e.g., with source and without source, in classical and quantum forms. Moreover, I will introduce emerging applications related to the spin and orbital angular momenta. Additionally, numerical results demonstrating how to extract the topological charge of a classical vortex beam are also presented.
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Speaker Bio: Wei E.I. Sha received the B.S. and Ph.D. degrees in Electronic Engineering at Anhui University, Hefei, China, in 2003 and 2008, respectively. From Jul. 2008 to Jul. 2017, he was a Postdoctoral Research Fellow and then a Research Assistant Professor in the Department of Electrical and Electronic Engineering at the University of Hong Kong, Hong Kong. From Mar. 2018 to Mar. 2019, he worked at University College London as a Marie Skłodowska-Curie Individual Fellow. From Oct. 2017, he joined the College of Information Science & Electronic Engineering at Zhejiang University, Hangzhou, China, where he is currently a tenured Associate Professor.
Prof. Sha leads the “EM Plus X” group that engages in theoretical and computational research in electromagnetics, focusing on multiphysics and interdisciplinary research. Dr. Sha has authored or coauthored 218 refereed journal papers, 182 conference publications (including 7 keynote talks and 3 short courses), 10 book chapters, and 2 books. His Google Scholar citation is 11,169 with h-index of 56.
He is a senior member of IEEE and a life member of OSA. He served as Reviewers for 60 technical journals and Technical Program Committee Members of 10 IEEE conferences. He also served as Associate Editors of IEEE Journal on Multiscale and Multiphysics Computational Techniques, IEEE Open Journal of Antennas and Propagation, IEEE Access, and Electromagnetic Science. In 2015, he was awarded Second Prize of Science and Technology from Anhui Province Government, China. He was the recipient of ACES-China Electromagnetics Education Ambassador Award 2024, ACES Technical Achievement Award 2022 and PIERS Young Scientist Award 2021. Dr. Sha also received 9 Best Student Paper Prizes and one Young Scientist Award with his students.
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