中科院数学与系统科学研究院
数学研究所
动力系统研讨班报告
报告人： Prof. Jun Zou (The Chinese University of Hong Kong)
题 目：Resonance analysis of electromagnetic metasurfaces
时 间：2019.05.28（星期二）, 10 :30-11:30
地 点：数学院南楼N913室
摘 要：In this talk we report some recent resonance analysis of electromagnetic metasurfaces. We consider the anomalous electromagnetic scattering by periodically distributed sub-wavelength plasmonic nanoparticles, and establish some quantitative representation of the field enhancement due to mixed collective plasmon resonances, which can be characterized by the spectra of periodic Neumann-Poincare type operators. Based on the far field analysis, we demonstrate the optical effect of the electromagnetic metasurface can be effectively approximated by a Leontovich boundary condition. These results confirm essential physical changes of metasurface at resonances mathematically.
