Pixel-based metaatom design of graphene-metasurface absorber for terahertz waves

Pankaj Kumar, Akhlesh Lakhtakia, Pradip K. Jain

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

1 Scopus citations

Abstract

A pixel-based approach to design of metaatoms was implemented on graphene absorbers of terahertz radiation. The top surface of each metaatom was conceived as a square array of square pixels, some patched with graphene but not the others. This patterned graphene was separated from a continuous layer of graphene by an insulator, the entire assembly on top of a metal-backed dielectric substrate. When the chemical potential of graphene was taken to be sufficiently high, simulations indicate almost perfect peak absorptance can be obtained with a significant reduction in the need for graphene, depending upon the arrangement of the graphene pixels.

Original languageEnglish (US)
Title of host publicationTerahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII
EditorsLaurence P. Sadwick, Tianxin Yang
PublisherSPIE
ISBN (Electronic)9781510624764
DOIs
StatePublished - Jan 1 2019
EventTerahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII 2019 - San Francisco, United States
Duration: Feb 4 2019Feb 7 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10917
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceTerahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII 2019
CountryUnited States
CitySan Francisco
Period2/4/192/7/19

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Kumar, P., Lakhtakia, A., & Jain, P. K. (2019). Pixel-based metaatom design of graphene-metasurface absorber for terahertz waves. In L. P. Sadwick, & T. Yang (Eds.), Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII [109171V] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10917). SPIE. https://doi.org/10.1117/12.2506603