报告题目：高折射率粒子的光散射特性
peculiarities of Light Scattering by Particles with High Refractive Index
报告时间：11月13日(周二)下午15:00
报告地点：理学院一楼报告厅
报告人：Dr. Michael I. Tribelsky is Head of Laboratory for Nonlinear, Non-equilibrium and complex systems, Faculty of Physics, Lomonosov Moscow State University (MSU), Moscow, Russia and Professor at the National Research Nuclear University MEPhI, Moscow, Russia. He received BS in Physics (theoretical and mathematical physics) from the MSU in 1973, Ph.D. in Physics and Mathematics from the Moscow Institute of Physics and Technology in 1976 and Dr. Sci. (Habilitation) from Landau Institute for Theoretical Physics in 1985. In 1979 for his study of laser damage of optical glass, he received the highest national prize for junior scientists in the former Soviet Union – Leninsky Komsomol Prize. He is a former Professor at the University of Tokyo, Japan; Kyushu University, Japan; Fukui University, Japan; and Honorary Doctor of Philosophy from Yamaguchi University, Japan. He received JSPS Fellowship (Japan) and Max Plank Society Scholarships (Germany). He has published 4 book, 1 book chapters, more than 150 journal and conference publications, delivered many conference presentations and invited talks/lectures/seminars.
报告摘要：
A review of recent theoretical and experimental results in light scattering by high refractive index (HRI) particles is presented. It is shown, that the process is characterized by sharp, high-Q resonances affecting both the scattered field outside the particle and the one within it. However, the manifestation of the resonances in the former and later cases is quite different. For the scattered field outside the particle each partial mode exhibits an infinite cascade of the Fano resonances. Regarding the field within the particle, in contrast to the common believe that for a HRI particle this field is weak, it is shown that the resonances may give rise to a giant concentration of the electromagnetic field within the particle, exceeding the one in the incident wave in several orders of magnitude. These features of the problem provide physical grounds for numerous applications, especially those related to the design and engineering of high nonlinear heterogeneous nanostructures and cloaking metamaterials.