Highly Sensitive Thin‐Film Sensing with a Toroidal Dipole Resonance in the Midinfrared Supported by an E‐Shaped Germanium Metasurface

Optical sensing applications based on resonant structures always demand on novel optical resonances with large quality factors to achieve high sensitivities. Herein, it is experimentally demonstrated that a toroidal dipole (TD) response working in the midinfrared, supported by a metasurface structur...

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Bibliographic Details
Main Authors: Min Sun, Guangdong Wang, Yuechun Shi, Zhanghua Han
Format: Article
Language:English
Published: Wiley-VCH 2022-11-01
Series:Advanced Photonics Research
Subjects:
Online Access:https://doi.org/10.1002/adpr.202200129