Michael I. Tribelsky

Lomonosov Moscow State University, Russia

Title: Singularities in the Poynting vector field at resonant light scattering by meso- and nanoscale particles

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Biography

Tribelsky received his MS from Lomonosov Moscow State University in 1973, his Ph.D. from Moscow Institute of Physics and Technology in 1976, and Dr. of Sci. (habilitation) from Landau Institute in 1985. He received numerous national and international awards: Leninsky Komsomol Prize (1979); COE Professorship, the University of Tokyo (2006, 2008) and Kyushu University (2007), Japan; Honorary Ph.D., Yamaguchi University, Japan (2016), etc. Now he heads a laboratory at Lomonosov Moscow State University. His field is theoretical and mathematical physics. Presently, his interest lies in subwavelength optics. He is the author of several books, book chapters, review articles, and more than 100 research papers. 

Abstract

The topological structure of the Pointing vector field at resonant light scattering by a particle in the near field zone and within the particle itself determines the energy circulation in these areas. In turn, any field's global topological structure is determined by its singularities' type and position. For this reason, their study is essential both from the academic viewpoint and for numerous applications in telecommunication, medicine, biology, high-resolution spectroscopy, etc. In the present talk, the author surveys recent results in classifying the Pointing vector field singularities, their connection with the structure of the electric and magnetic fields, and the effects of constraints imposed on the problem by its symmetry, spatial dimension, and energy conservation law. This research was funded by the Russian Science Foundation (Project No. 21-12-00151).