학술논문

Inverse Design of Metamaterial Bound States in the Continuum Device via Coupled Mode Theory
Document Type
Periodical
Source
IEEE Transactions on Microwave Theory and Techniques IEEE Trans. Microwave Theory Techn. Microwave Theory and Techniques, IEEE Transactions on. 72(3):1520-1528 Mar, 2024
Subject
Fields, Waves and Electromagnetics
Resonant frequency
Metamaterials
Couplings
Deep learning
Interference
Information processing
Time-frequency analysis
Bound states in the continuum (BIC)
coupled mode theory (CMT)
inverse design
metasurfaces
Language
ISSN
0018-9480
1557-9670
Abstract
We propose a novel inverse design of metamaterial bound states in the continuum (BIC) device based on resonance frequency and BIC point frequency of transmission spectrum. First, we investigate the relationship between the frequencies of resonance frequency and quasi-BIC frequency in the theoretical model by employing coupled mode theory (CMT) and Huygens principle. Based on our finding, we can obtain the inverse design of metamaterial BIC devices by using designed resonant frequency and designed quasi-BIC frequency. Furthermore, our method is universal for metamaterial BIC devices based on two metamaterial structures, which is not relative with specific structures. Our findings are based on theoretical model, simulation results, and experiments.