Novel metal oxide metasurface-based optical solar reflectors
Novel metal oxide metasurface-based optical solar reflectors
Optical Solar Reflectors (OSRs) play a crucial role in thermal management of spacecraft as the outer-surface to the space environment. To achieve the thermal control, an ideal OSR should be able to reflect all the UV/Vis/NIR spectrum radiation to avoid heating up by the son and also emit blackbody radiation in infrared (IR) spectrum for thermal dissipation. Conventionally, OSRs are made of aluminium plated quartz tiles and therefore have serious issues for their heavy weight and fragile format, significantly adding the launch and assembly cost, respectively. Recently, we have proposed a meta-OSR solution based on thin film technology using Al-doped ZnO (AZO) [1] and the meta-OSRs can be fabricated on flexible substrates, making them light in weight and easy for surface mounting. In addition, we have also proposed a smart meta-OSR solution based on VO 2 , which has a tunable emissivity depending on the operational temperature [2]. In this work, we report a novel meta-OSR with a planar AZO metasurface unlike island-like metasurfaces formed by etch. The planar metasurface is fabricated through our patented plasma patterning technique [3] [4] , which can locally modulate carrier density in AZO.
Sun, Kai
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Xiao, Wei
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Zeimpekis, Ioannis
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Simeoni, Mirko
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Urbani, Alessandro
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Gaspari, Matteo
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Mengali, Sandro
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Indiveri, Ivano
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Alpat, Behcet
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Kildebro, Lars
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Aizpurua, Javier
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Hawak, Dan
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de Groot, C.H. (Kees)
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Muskens, Otto L.
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Sun, Kai
b7c648a3-7be8-4613-9d4d-1bf937fb487b
Xiao, Wei
20758ef4-698c-46e5-bb9b-a97db7340379
Zeimpekis, Ioannis
a2c354ec-3891-497c-adac-89b3a5d96af0
Simeoni, Mirko
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Urbani, Alessandro
d68233a3-a42d-4291-b938-9bf05daa22b2
Gaspari, Matteo
015ef61b-5f60-4584-a3d2-1bec5e6424df
Mengali, Sandro
e9ff1aee-6345-4414-af05-4d99308fdb73
Indiveri, Ivano
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Alpat, Behcet
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Kildebro, Lars
b303617b-43e5-44bd-b973-1fb8c710d1fa
Aizpurua, Javier
17705349-38e3-4089-adba-547d02449095
Hawak, Dan
87c80070-c101-4f7a-914f-4cc3131e3db0
de Groot, C.H. (Kees)
92cd2e02-fcc4-43da-8816-c86f966be90c
Muskens, Otto L.
2284101a-f9ef-4d79-8951-a6cda5bfc7f9
Sun, Kai, Xiao, Wei, Zeimpekis, Ioannis, Simeoni, Mirko, Urbani, Alessandro, Gaspari, Matteo, Mengali, Sandro, Indiveri, Ivano, Alpat, Behcet, Kildebro, Lars, Aizpurua, Javier, Hawak, Dan, de Groot, C.H. (Kees) and Muskens, Otto L.
(2021)
Novel metal oxide metasurface-based optical solar reflectors.
In 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
IEEE.
1 pp
.
(doi:10.1109/CLEO/Europe-EQEC52157.2021.9542460).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Optical Solar Reflectors (OSRs) play a crucial role in thermal management of spacecraft as the outer-surface to the space environment. To achieve the thermal control, an ideal OSR should be able to reflect all the UV/Vis/NIR spectrum radiation to avoid heating up by the son and also emit blackbody radiation in infrared (IR) spectrum for thermal dissipation. Conventionally, OSRs are made of aluminium plated quartz tiles and therefore have serious issues for their heavy weight and fragile format, significantly adding the launch and assembly cost, respectively. Recently, we have proposed a meta-OSR solution based on thin film technology using Al-doped ZnO (AZO) [1] and the meta-OSRs can be fabricated on flexible substrates, making them light in weight and easy for surface mounting. In addition, we have also proposed a smart meta-OSR solution based on VO 2 , which has a tunable emissivity depending on the operational temperature [2]. In this work, we report a novel meta-OSR with a planar AZO metasurface unlike island-like metasurfaces formed by etch. The planar metasurface is fabricated through our patented plasma patterning technique [3] [4] , which can locally modulate carrier density in AZO.
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e-pub ahead of print date: 30 September 2021
Venue - Dates:
CLEO/Europe-EQEC 2021 Virtual Conference, , Virtual, 2021-06-21 - 2021-06-25
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Local EPrints ID: 471547
URI: http://eprints.soton.ac.uk/id/eprint/471547
PURE UUID: af107a14-0f00-47b1-88c5-47d81d3aaa87
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Date deposited: 10 Nov 2022 17:42
Last modified: 17 Mar 2024 03:24
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Contributors
Author:
Mirko Simeoni
Author:
Alessandro Urbani
Author:
Matteo Gaspari
Author:
Sandro Mengali
Author:
Ivano Indiveri
Author:
Behcet Alpat
Author:
Lars Kildebro
Author:
Javier Aizpurua
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