Mid-IR high-index dielectric Huygens metasurfaces
Name
Hu_Mid-IR.pdf
Size
4.03 MB
Format
Adobe PDF
Checksum (MD5)
93d41f4ee774ba19148fb3691661c357
Author(s)
Ding, Jun
Zhang, Li
Ren, Han
Zhou, Mi
Lin, Yuankun
Hu, Juejun
Zhang, Hualiang
Date Issued
February 2016
Journal
Proceedings of SPIE--the Society of Photo-Optical Instrumentation Engineers
Publisher
SPIE
Citation
Ding, Jun, et al. Mid-IR High-Index Dielectric Huygens Metasurfaces. Edited by Bernd Witzigmann et al. Proceedings of SPIE, 9742, Physics and Simulation of Optoelectronic Devices XXIV; 974211 (2016) © 2016 SPIE
Version
Final published version
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.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1117/12.2212883
