Inverse design of exceptional points in a single-resonance two-port network

作者：Y. F. Li, Biao Chen, Yinyin Wu, Y. L. Liu, H. Lin, Bin Zhou · 发表于：arXiv (Cornell University) · 年份：2026 · DOI：10.48550/arxiv.2604.14744 · 研究领域：Quantum Mechanics and Non-Hermitian Physics、Electromagnetic Simulation and Numerical Methods、Metamaterials and Metasurfaces Applications

Exceptional points (EPs) in non-Hermitian photonic systems enable unconventional control of wave amplitude and phase. However, identifying the EPs in multidimensional parameter space of a system can be nontrivial and, in some cases, even infeasible. Here we propose an inverse-design method to efficiently locate the scattering EPs for a two-port resonant system supporting a single mode. The proposed method provides a direct guide for tuning of geometric parameters to realize scattering EPs, as confirmed by both full-wave simulation and equivalent circuit model. In principle, our method is compatible with multi-mode system, making it broadly applicable to a broad class of resonant systems.