Electromagnetic Field Enhancement In a Sub-wavelength Rectangular Open Cavity
报告题目(Title)：Electromagnetic Field Enhancement In a Sub-wavelength Rectangular Open Cavity
报告人(Speaker)：高忆先（东北师范大学）
地点(Place)：后主楼1223
时间(Time)：2019年9月9日 15:00-16:00
邀请人(Inviter)：李海刚
报告摘要
In this talk, we will consider the transverse magnetic polarization of the electromagnetic scattering of a plane wave by a perfectly conducting plane surface, which contains a two-dimensional subwavelength rectangular cavity. The enhancement is investigated fully for the electric and magnetic fields arising in such an interaction. The cavity wall is assumed to be a perfect electric conductor, while the cavity bottom is allowed to be either a perfect electric conductor or a perfect magnetic conductor. We show that the significant field enhancement may be achieved in both nonresonant and resonant regimes. The proofs are based on variational approaches, layer potential techniques, boundary integral equations, and asymptotic analysis. Numerical experiments are also presented to confirm the theoretical findings.
主讲人简介
高忆先，东北师范大学教授、博士生导师，主要从事无穷维动力系统和散射、反散射问题的研究。目前已在 Arch. Ration. Mech. Anal.，SIAM J. Math. Anal.，Inverse Problems， J. Differential Equations 等权威杂志发表论文多篇，主持国家自然科学基金项目多项。
