Blacker than ideally black: Double negative conjugately matched cylinders

J. Vehmas, C. Valagiannopoulos, S. Tretyakov, S. Maslovski

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

Abstract

We show that using uniaxial double negative metamaterials it is possible to create bodies which optimally absorb power from all spatial harmonics of the incident fields, both propagating and evanescent. Comparing with the ideal black bodies which fully absorb only all propagating waves, these new objects appear 'infinitely more black', in the sense of the absorption efficiency. The concept is illustrated by considering infinite absorptive cylinders. The required material parameters for a conjugately matched cylindrical absorber are derived and absorption efficiency is studied numerically.

Original languageEnglish
Title of host publication2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages511-513
Number of pages3
ISBN (Print)9781479978366
DOIs
Publication statusPublished - Nov 30 2015
Externally publishedYes
Event9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2015 - Oxford, United Kingdom
Duration: Sep 7 2015Sep 12 2015

Other

Other9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2015
CountryUnited Kingdom
CityOxford
Period9/7/159/12/15

    Fingerprint

Keywords

  • Absorption
  • Electromagnetics
  • Impedance
  • Mathematical model
  • Metamaterials
  • Optics
  • Transforms

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Vehmas, J., Valagiannopoulos, C., Tretyakov, S., & Maslovski, S. (2015). Blacker than ideally black: Double negative conjugately matched cylinders. In 2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2015 (pp. 511-513). [7342506] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MetaMaterials.2015.7342506