Mid-infrared grayscale metasurface holograms

Optical metasurfaces composed of two-dimensional arrays of densely packed nanostructures can project arbitrary holographic images at mid-infrared frequency. Our approach employs silicon nanopillars to control light properties, including polarization-independent phase response working with high-trans...

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Main Authors:	Wu, Kedi, Kossowski, Nicolas, Qiu, Haodong, Wang, Hong, Wang, Qijie, Genevet, Patrice
Other Authors:	School of Electrical and Electronic Engineering
Format:	Article
Language:	English
Published:	2021
Subjects:	Science::Physics Metasurfaces Hologram
Online Access:	https://hdl.handle.net/10356/146191
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Institution:	Nanyang Technological University
Language:	English

id	sg-ntu-dr.10356-146191
record_format	dspace
spelling	sg-ntu-dr.10356-1461912021-01-29T07:45:49Z Mid-infrared grayscale metasurface holograms Wu, Kedi Kossowski, Nicolas Qiu, Haodong Wang, Hong Wang, Qijie Genevet, Patrice School of Electrical and Electronic Engineering CNRS International NTU THALES Research Alliances Science::Physics Metasurfaces Hologram Optical metasurfaces composed of two-dimensional arrays of densely packed nanostructures can project arbitrary holographic images at mid-infrared frequency. Our approach employs silicon nanopillars to control light properties, including polarization-independent phase response working with high-transmission efficiency over the 2π-phase modulation range at wavelength 4.7 μm. We experimentally dispose nanopillars accordingly to phase-only profiles calculated using the conventional Gerchberg-Saxton algorithm and revealed the optical performances of our devices using a mid-infrared on-axis optical setup. The total efficiency of our reflection hologram reaches 81%. Our experimental results agree well with the image of the desired object, opening up new perspectives for mid-infrared imaging and displaying for military, life science and sensing application. Published version 2021-01-29T07:45:49Z 2021-01-29T07:45:49Z 2020 Journal Article Wu, K., Kossowski, N., Qiu, H., Wang, H., Wang, Q., & Genevet, P. (2020). Mid-infrared grayscale metasurface holograms. Applied Sciences, 10(2), 552-. doi:10.3390/app10020552 2076-3417 0000-0003-1608-9452 0000-0002-9910-1455 0000-0003-0216-3885 https://hdl.handle.net/10356/146191 10.3390/app10020552 2-s2.0-85081282623 2 10 en Applied Sciences © 2020 The Author(s). Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). application/pdf
institution	Nanyang Technological University
building	NTU Library
continent	Asia
country	Singapore Singapore
content_provider	NTU Library
collection	DR-NTU
language	English
topic	Science::Physics Metasurfaces Hologram
spellingShingle	Science::Physics Metasurfaces Hologram Wu, Kedi Kossowski, Nicolas Qiu, Haodong Wang, Hong Wang, Qijie Genevet, Patrice Mid-infrared grayscale metasurface holograms
description	Optical metasurfaces composed of two-dimensional arrays of densely packed nanostructures can project arbitrary holographic images at mid-infrared frequency. Our approach employs silicon nanopillars to control light properties, including polarization-independent phase response working with high-transmission efficiency over the 2π-phase modulation range at wavelength 4.7 μm. We experimentally dispose nanopillars accordingly to phase-only profiles calculated using the conventional Gerchberg-Saxton algorithm and revealed the optical performances of our devices using a mid-infrared on-axis optical setup. The total efficiency of our reflection hologram reaches 81%. Our experimental results agree well with the image of the desired object, opening up new perspectives for mid-infrared imaging and displaying for military, life science and sensing application.
author2	School of Electrical and Electronic Engineering
author_facet	School of Electrical and Electronic Engineering Wu, Kedi Kossowski, Nicolas Qiu, Haodong Wang, Hong Wang, Qijie Genevet, Patrice
format	Article
author	Wu, Kedi Kossowski, Nicolas Qiu, Haodong Wang, Hong Wang, Qijie Genevet, Patrice
author_sort	Wu, Kedi
title	Mid-infrared grayscale metasurface holograms
title_short	Mid-infrared grayscale metasurface holograms
title_full	Mid-infrared grayscale metasurface holograms
title_fullStr	Mid-infrared grayscale metasurface holograms
title_full_unstemmed	Mid-infrared grayscale metasurface holograms
title_sort	mid-infrared grayscale metasurface holograms
publishDate	2021
url	https://hdl.handle.net/10356/146191
_version_	1692012910870528000

Mid-infrared grayscale metasurface holograms

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