@article{1181,
  author = {Alessio Amaolo and Pengning Chao and Thomas Maldonado and Sean Molesky and Alejandro Rodriguez},
  title = {Can photonic heterostructures provably outperform single-material geometries?},
  abstract = {<p>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 {\textendash} often coming within factors of two of specific designs {\textendash} and may be utilized in conjunction with inverse designs to predict when heterostructures are expected to outperform their optimal single-material counterparts.</p>
},
  year = {2023},
  journal = {Nanophotonics},
  volume = {10},
  month = {12/2023},
  url = {https://www.degruyter.com/document/doi/10.1515/nanoph-2023-0606/html},
}