Can photonic heterostructures provably outperform single-material geometries?
| Autor: | Amaolo, Alessio, Chao, Pengning, Maldonado, Thomas J., Molesky, Sean, Rodriguez, Alejandro W. |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1515/nanoph-2023-0606 |
| Popis: | Recent advances in photonic optimization have enabled calculation of performance bounds for a wide range of electromagnetic objectives, albeit restricted to single-material systems. Motivated by growing theoretical interest and fabrication advances, we present a framework to bound the performance of photonic heterostructures and apply it to investigate maximum absorption characteristics of multilayer films and compact, free-form multi-material scatterers. Limits predict trends seen in topology-optimized geometries -- often coming within factors of two of specific designs -- and may be exploited in conjunction with inverse designs to predict when heterostructures are expected to outperform their optimal single-material counterparts. Comment: 12 pages, 5 figures |
| Databáze: | arXiv |
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