73882必赢网页版(中国)欧洲杯

Research

Computational & Applied Math Seminar

On plasmon modes in multi-layer structures

Speaker: Youjun Deng (Central South University)
Time: Aug 2, 2022, 10:00-11:00
Location: Tencent Meeting ID 804-360-535, Passcode 220802

Abstract

We consider the plasmon resonances in multi-layer structures. We show the plasmon modes are equivalent to the eigenvalue problem of a matrix, whose order is the same to the number of layers. For any number of layers, the exact characteristic polynomial is derived by a conjecture, which is verified by using induction. It is shown that all the solutions to the characteristic polynomial are real and exist in the span [-1, 2]. Numerical examples are presented for finding all the plasmon modes.