Ultra-thin high-efficiency mid-infrared transmissive Huygens meta-optics
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s41467-018-03831-7.pdf
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Author(s)
Ding, Jun
An, Sensong
Zheng, Bowen
Deng, Longjiang
Zhang, Hualiang
Zhang, Li
Lin, Hongtao
Du, Qingyang
Yin, Gufan
Michon, Jerome
Date Issued
June 2018
Journal
Nature Communications
Publisher
Nature Publishing Group
Citation
Zhang, Li, et al. “Ultra-Thin High-Efficiency Mid-Infrared Transmissive Huygens Meta-Optics.” Nature Communications, vol. 9, no. 1, Dec. 2018. © 2018 The Authors
Version
Final published version
Abstract
The mid-infrared (mid-IR) is a strategically important band for numerous applications ranging from night vision to biochemical sensing. Here we theoretically analyzed and experimentally realized a Huygens metasurface platform capable of fulfilling a diverse cross-section of optical functions in the mid-IR. The meta-optical elements were constructed using high-index chalcogenide films deposited on fluoride substrates: the choices of wide-band transparent materials allow the design to be scaled across a broad infrared spectrum. Capitalizing on a two-component Huygens' meta-atom design, the meta-optical devices feature an ultra-thin profile (λ0/8 in thickness) and measured optical efficiencies up to 75% in transmissive mode for linearly polarized light, representing major improvements over state-of-the-art. We have also demonstrated mid-IR transmissive meta-lenses with diffraction-limited focusing and imaging performance. The projected size, weight and power advantages, coupled with the manufacturing scalability leveraging standard microfabrication technologies, make the Huygens meta-optical devices promising for next-generation mid-IR system applications.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1038/s41467-018-03831-7
