Ultra-thin high-efficiency mid-infrared transmissive Huygens meta-optics

Li Zhang, Jun Ding, Hanyu Zheng, Sensong An, Hongtao Lin, Bowen Zheng, Qingyang Du, Gufan Yin, Jerome Michon, Yifei Zhang, Zhuoran Fang, Mikhail Y. Shalaginov, Longjiang Deng, Tian Gu (), Hualiang Zhang () and Juejun Hu ()
Additional contact information
Li Zhang: University of Electronic Science and Technology of China
Jun Ding: East China Normal University
Hanyu Zheng: University of Electronic Science and Technology of China
Sensong An: University of Massachusetts Lowell
Hongtao Lin: Massachusetts Institute of Technology
Bowen Zheng: University of Massachusetts Lowell
Qingyang Du: Massachusetts Institute of Technology
Gufan Yin: Massachusetts Institute of Technology
Jerome Michon: Massachusetts Institute of Technology
Yifei Zhang: Massachusetts Institute of Technology
Zhuoran Fang: Massachusetts Institute of Technology
Mikhail Y. Shalaginov: Massachusetts Institute of Technology
Longjiang Deng: University of Electronic Science and Technology of China
Tian Gu: Massachusetts Institute of Technology
Hualiang Zhang: University of Massachusetts Lowell
Juejun Hu: Massachusetts Institute of Technology

Nature Communications, 2018, vol. 9, issue 1, 1-9

Abstract: 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.

Date: 2018
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DOI: 10.1038/s41467-018-03831-7

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