Multilayer dielectric metalens

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 m...

Full description

Saved in:
Bibliographic Details
Published in:Optics letters 2022-10, Vol.47 (20), p.5333-5336
Main Authors: Carlos Basilio-Ortiz, J., Moreno, Ivan
Format: Article
Language:English
Subjects:
Aspect ratio
Chromaticity
Multilayers
Optical properties
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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).
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.474974