Optical dielectric huygens metagrating performing near unity anomalous refraction at TM mode with extremely simple design

Rui Yao

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arXiv · 2304.07569

Optical dielectric huygens metagrating performing near unity anomalous refraction at TM mode with extremely simple design

Rui Yao

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Abstract

We numerically demonstrate a highly efficient optica huygens metagrating with unprecedentedly simple structure (only one meta-atom per period) designed via aggressively discretized method which initially originated from discretized metasurface design, performing nearly lossless anomalous refraction under TM-polarized incident light. A 2D full-wave floquet simulation shows that the proposed metagrating anomalously transmits and incident light of 800 nm wavelength with up to 94% power efficiency, where the specular 2transmission is substantially suppressed. our findings can also help demarcate the boundary between metagrating and metasurface.

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Rui Yao. 2023-04-15. Optical dielectric huygens metagrating performing near unity anomalous refraction at TM mode with extremely simple design. https://arxiv.org/abs/2304.07569

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