Broadband behavior of quadratic metalenses with a wide field of view
| Autor: | Yang Liu, Jianhao Zhang, Xavier Le Roux, Eric Cassan, Delphine Marris-Morini, Laurent Vivien, Carlos Alonso-Ramos, Daniele Melati |
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| Přispěvatelé: | Centre de Nanosciences et de Nanotechnologies (C2N), Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), ANR-22-ERCS-0007,BEAMS,Plateforme d'intégration photonique multicouche pour l'optique en espace libre(2022), European Project: 101041131,ERC BEAMS |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Optics Express Optics Express, 2022, 30 (22), pp.39860. ⟨10.1364/OE.466321⟩ |
| ISSN: | 1094-4087 |
| Popis: | International audience; Metalenses are attracting a large interest for the implementation of complex optical functionalities in planar and compact devices. However, chromatic and off-axis aberrations remain standing challenges. Here, we experimentally investigate the broadband behavior of metalenses based on quadratic phase profiles. We show that these metalenses do not only guarantee an arbitrarily large field of view but are also inherently tolerant to longitudinal and transverse chromatic aberrations. As such, we demonstrate a single-layer, silicon metalens with a field of view of 86° and a bandwidth up to 140 nm operating at both 1300 nm and 1550 nm telecommunication wavelength bands. |
| Databáze: | OpenAIRE |
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