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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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 |
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Nanyang Technological University |
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NTU Library |
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Asia |
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Singapore Singapore |
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NTU Library |
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| 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 |