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Proceedings Paper

Pixel-based metaatom design of graphene-metasurface absorber for terahertz waves
Author(s): Pankaj Kumar; Akhlesh Lakhtakia; Pradip K. Jain
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Paper 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.

Paper Details

Date Published: 1 March 2019
PDF: 7 pages
Proc. SPIE 10917, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII, 109171V (1 March 2019); doi: 10.1117/12.2506603
Show Author Affiliations
Pankaj Kumar, National Institute of Technology, Patna (India)
Akhlesh Lakhtakia, The Pennsylvania State Univ. (United States)
Indian Institute of Technology, Vanansi (India)
Pradip K. Jain, National Institute of Technology, Patna (India)
Indian Institute of Technology, Vanansi (India)


Published in SPIE Proceedings Vol. 10917:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII
Laurence P. Sadwick; Tianxin Yang, Editor(s)

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