Deflectable Moiré Metalens

Tian Zhou; Bin Hu; Zheng Liu; Juan Liu

doi:10.1016/j.ijleo.2021.167806

Deflectable Moiré Metalens

Tian Zhou, Bin Hu^*, Zheng Liu, Juan Liu

^*Corresponding author for this work

School of Optics and Photonics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Recently, metasurfaces are widely applied in different fields and emerge as a versatile platform for wavefront shaping. For further application, tunable metasurface devices are highly desired. Here, a deflectable focusing metalens based on Moiré structure is proposed. It consists of two cascaded metasurfaces with amorphous silicon nano-pillars on silica substrates. The deflection angle can be continuously tuned by the mutual rotation of the metasurfaces. According to the simulation results, the deflection angle can be tuned in a large range (−30°–30°) at 810 nm. It is predicted that the design may have a great application prospect in the alignments of metasurface-based optical systems.

Original language	English
Article number	167806
Journal	Optik
Volume	247
DOIs	https://doi.org/10.1016/j.ijleo.2021.167806
Publication status	Published - Dec 2021

Keywords

Deflectable focusing
Morié structure
Tunable metasurface

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10.1016/j.ijleo.2021.167806

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title = "Deflectable Moir{\'e} Metalens",

abstract = "Recently, metasurfaces are widely applied in different fields and emerge as a versatile platform for wavefront shaping. For further application, tunable metasurface devices are highly desired. Here, a deflectable focusing metalens based on Moir{\'e} structure is proposed. It consists of two cascaded metasurfaces with amorphous silicon nano-pillars on silica substrates. The deflection angle can be continuously tuned by the mutual rotation of the metasurfaces. According to the simulation results, the deflection angle can be tuned in a large range (−30°–30°) at 810 nm. It is predicted that the design may have a great application prospect in the alignments of metasurface-based optical systems.",

keywords = "Deflectable focusing, Mori{\'e} structure, Tunable metasurface",

author = "Tian Zhou and Bin Hu and Zheng Liu and Juan Liu",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier GmbH",

year = "2021",

month = dec,

doi = "10.1016/j.ijleo.2021.167806",

language = "English",

volume = "247",

journal = "Optik",

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T1 - Deflectable Moiré Metalens

AU - Zhou, Tian

AU - Hu, Bin

AU - Liu, Zheng

AU - Liu, Juan

PY - 2021/12

Y1 - 2021/12

N2 - Recently, metasurfaces are widely applied in different fields and emerge as a versatile platform for wavefront shaping. For further application, tunable metasurface devices are highly desired. Here, a deflectable focusing metalens based on Moiré structure is proposed. It consists of two cascaded metasurfaces with amorphous silicon nano-pillars on silica substrates. The deflection angle can be continuously tuned by the mutual rotation of the metasurfaces. According to the simulation results, the deflection angle can be tuned in a large range (−30°–30°) at 810 nm. It is predicted that the design may have a great application prospect in the alignments of metasurface-based optical systems.

AB - Recently, metasurfaces are widely applied in different fields and emerge as a versatile platform for wavefront shaping. For further application, tunable metasurface devices are highly desired. Here, a deflectable focusing metalens based on Moiré structure is proposed. It consists of two cascaded metasurfaces with amorphous silicon nano-pillars on silica substrates. The deflection angle can be continuously tuned by the mutual rotation of the metasurfaces. According to the simulation results, the deflection angle can be tuned in a large range (−30°–30°) at 810 nm. It is predicted that the design may have a great application prospect in the alignments of metasurface-based optical systems.

KW - Deflectable focusing

KW - Morié structure

KW - Tunable metasurface

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DO - 10.1016/j.ijleo.2021.167806

M3 - Article

AN - SCOPUS:85113673294

SN - 0030-4026

VL - 247

JO - Optik

JF - Optik

M1 - 167806

ER -

Deflectable Moiré Metalens

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Keywords

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