Multilayer dielectric metalens

被引：11
作者：
Basilio-Ortiz, J. Carlos [1 ]
Moreno, Ivan [1 ]
机构：
[1] UAZ, Unidad Academ Ciencia & Tecnol Luz & Mat, Zacatecas 98060, Mexico
来源：
OPTICS LETTERS | 2022年 / 47卷 / 20期
关键词：
ACHROMATIC METALENS; METASURFACES; LENSES;
D O I：
10.1364/OL.474974
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose and analyze a metalens whose meta-atoms (nanoscatterers) are integrated by a stack of quarter-wave dielectric layers. Each multilayer meta-atom is a nanopillar, which consists of alternating layers of high-and low -refractive-index materials. We show that the nanopillars of a multilayer metalens may have a smaller aspect ratio than the nanopillars of a standard metalens and have similar optical properties (focusing efficiency and chromaticity). (c) 2022 Optica Publishing Group
引用
收藏
页码：5333 / 5336
页数：4
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