Multi-colour reflective metagrating with neutral transparency for augmented reality

Author:

Magno GiovanniORCID,Dagens Béatrice1ORCID,D’Orazio Antonella,Gauthier-Lafaye Olivier2ORCID

Affiliation:

1. Université Paris-Saclay

2. Université de Toulouse

Abstract

This paper presents the design and experimental validation of an all-dielectric and transparent metagrating-based metalens. Leveraging multiple guided mode resonances simultaneously, the metagrating enables the generation of two or more spectrally narrow reflection peaks. These peaks are achieved through the precise engineering of guided mode resonances, allowing for the reflection of a comb of vibrant and saturated colours. In addition to the investigation of underlying mechanisms, we introduce an analytical numerical method that facilitates rapid engineering of the spectral positions of the reflection peak comb. Experimental validation is provided for a bichromatic sample. Such metagrating can be promising for augmented reality systems, supporting individuals with mild to moderate cognitive impairments by delivering visual and textual stimuli that can improve indoor navigation, home safety, communication, and decision-making.

Funder

Regione Puglia

Publisher

Optica Publishing Group

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Selective Color Reflection through Guided Mode Resonance Transparent Metasurfaces;2024 24th International Conference on Transparent Optical Networks (ICTON);2024-07-14

2. Dielectric meta-platform for Mid-IR enhancing applications;2024 24th International Conference on Transparent Optical Networks (ICTON);2024-07-14

3. Transparent Reflective Metasurfaces: from RIS to near-eye displays;2024 24th International Conference on Transparent Optical Networks (ICTON);2024-07-14

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