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

Pankaj Kumar; Akhlesh Lakhtakia; Pradip K. Jain

doi:10.1117/12.2506603

1 March 2019 Pixel-based metaatom design of graphene-metasurface absorber for terahertz waves

Pankaj Kumar, Akhlesh Lakhtakia, Pradip K. Jain

Proceedings Volume 10917, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII; 109171V (2019) https://doi.org/10.1117/12.2506603
Event: SPIE OPTO, 2019, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

Pankaj Kumar, Akhlesh Lakhtakia, and Pradip K. Jain "Pixel-based metaatom design of graphene-metasurface absorber for terahertz waves", Proc. SPIE 10917, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII, 109171V (1 March 2019); https://doi.org/10.1117/12.2506603

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