Flexible wide-angle polarization-insensitive mid-infrared metamaterial absorbers

Zhi Hao Jiang, Qi Wu, Xiande Wang, Douglas H. Werner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

The burgeoning field of metamaterials was brought about by the demand for materials with exotic properties beyond the reach of natural materials, such as a negative refractive index [1]. Most metamaterial development work has focused on engineering the real part of the effective permittivity and/or permeability [2]. However, a recently proposed perfect metamaterial absorber has drawn attention to the oftoverlooked imaginary part of the optical constant, [3] which can be manipulated to create high absorption. Compared with classical absorber designs such as Salisbury screens, metamaterial absorbers can possess much thinner structures, rendering them more suitable for radar and tracking applications. Nevertheless, most up-to-date metamaterial absorber designs, covering the RF [4] and THz [5] up to Near-IR [6] wavelengths, function only at either near-normal incidence or for a single polarization. In this paper, we propose single-band and dual-band flexible polarization-insensitive metamaterial absorbers with wide field of view for the mid-infrared band. The structures are based on a thin (∼λ0/15) bilayer metallo-dielectric stacks with the design parameters optimized via a genetic algorithm (GA), which has been proven to be a robust methodology for evolving complex structures with customized electromagnetic properties [7].

Original languageEnglish (US)
Title of host publication2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010
DOIs
StatePublished - Nov 22 2010
Event2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010 - Toronto, ON, Canada
Duration: Jul 11 2010Jul 17 2010

Publication series

Name2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010

Other

Other2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010
CountryCanada
CityToronto, ON
Period7/11/107/17/10

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture

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    Jiang, Z. H., Wu, Q., Wang, X., & Werner, D. H. (2010). Flexible wide-angle polarization-insensitive mid-infrared metamaterial absorbers. In 2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010 [5561241] (2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010). https://doi.org/10.1109/APS.2010.5561241