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. 2021 Aug 5;11:15863. doi: 10.1038/s41598-021-95429-1

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Schematics of the unit cell structure under study. VO₂ (red) fills the gap between the two gold rods (yellow). The dimer is supported by a Si₃N₄ layer (gray) and connected to a Si substrate by two Si pillars (dark blue). The substrate is assumed to be a heat reservoir maintained at 293.15 K. Red and blue arrows represent the incident direction and the polarization of LWIR, respectively.