Adjoint Method Supported Topology Optimization for Electromagnetic/Photonic Inverse Design
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Simsek, Ergun, Sumya H. Oishe, and Raonaqul Islam. “Adjoint Method Supported Topology Optimization for Electromagnetic/Photonic Inverse Design.” 2025 International Applied Computational Electromagnetics Society Symposium (ACES), July 2, 2025, 1–2. https://doi.org/10.23919/ACES66556.2025.11052563.
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Abstract
Topology optimization is a powerful computational approach for designing photonic and electromagnetic structures by optimizing material distribution within a given domain. In this study, we explore novel applications of adjoint-based topology optimization, including enhanced substrate design for two-dimensional materials, improved quantum efficiency in photodetectors, and a photonic medium for real-time object classification. We demonstrate a substrate optimization method that increases the absorption of broadband excitations in monolayer MoS2 by 72% and boosts quantum efficiency by 141%. Additionally, we introduce an optimized photonic medium that classifies objects at the speed of light by manipulating wavefront propagation.