ArticleNanomaterials (Basel, Switzerland)2021
High-Performance Asymmetric Optical Transmission Based on a Dielectric-Metal Metasurface.
Article in Nanomaterials (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Quantum annealing-aided design of an ultrathin-metamaterial optical diode.Nano convergence · 2024Article
- Refractive Index Modulation for Metal Electrodeposition-Based Active Smart Window Applications.Micromachines · 2024Article
- Demonstration of a Plasmonic Nonlinear Pseudodiode.Nano letters · 2023Article
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Authors and funding
6 authors.
Funding
Abstract
Asymmetric optical transmission plays a key role in many optical systems. In this work, we propose and numerically demonstrate a dielectric-metal metasurface that can achieve high-performance asymmetric transmission for linearly polarized light in the near-infrared region. Most notably, it supports a forward transmittance peak (with a transmittance of 0.70) and a backward transmittance dip (with a transmittance of 0.07) at the same wavelength of 922 nm, which significantly enhances operation bandwidth and the contrast ratio between forward and backward transmittances. Mechanism analyses reveal that the forward transmittance peak is caused by the unidirectional excitation of surface plasmon polaritons and the first Kerker condition, whereas the backward transmittance dip is due to reflection from the metal film and a strong toroidal dipole response. Our work provides an alternative and simple way to obtain high-performance asymmetric transmission devices.
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