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Proceedings Paper

Mid-IR high-index dielectric Huygens metasurfaces
Author(s): Jun Ding; Li Zhang; Han Ren; Mi Zhou; Yuankun Lin; Juejun Hu; Hualiang Zhang
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Paper Abstract

In this paper, we proposed highly efficient all-dielectric Huygens’ metasurfaces working at mid-IR frequencies. The meta-atom of the designed Huygens’ metasurface is a cubic dielectric resonator or its variety, which is made from PbTe that possesses a high refractive index of around 5 at mid-IR frequencies. By overlapping spectrally both the magnetic and electric dipole modes of the high-index dielectric resonators, a full phase coverage of 2π and an equal-magnitude transmission could be achieved, which are essential conditions for realizing a metasurface. Two Huygens’ metasurfaces for beam bending are designed with a phase change between two consecutive meta-atoms of π/4 and π/3, respectively. The simulation results agree well with the design theory.

Paper Details

Date Published: 4 March 2016
PDF: 7 pages
Proc. SPIE 9742, Physics and Simulation of Optoelectronic Devices XXIV, 97421I (4 March 2016); doi: 10.1117/12.2212883
Show Author Affiliations
Jun Ding, Univ. of Massachusetts, Lowell (United States)
Li Zhang, Massachusetts Institute of Technology (United States)
Univ. of Electronic Science and Technology of China (China)
Han Ren, Univ. of North Texas (United States)
Mi Zhou, Univ. of North Texas (United States)
Yuankun Lin, Univ. of North Texas (United States)
Juejun Hu, Massachusetts Institute of Technology (United States)
Hualiang Zhang, Univ. of Massachusetts, Lowell (United States)


Published in SPIE Proceedings Vol. 9742:
Physics and Simulation of Optoelectronic Devices XXIV
Bernd Witzigmann; Marek Osiński; Yasuhiko Arakawa, Editor(s)

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