Fully carbon metasurface: Absorbing coating in microwaves.

Autor: Bychanok, D., Li, S., Gorokhov, G., Piasotski, K., Meisak, D., Kuzhir, P., Burgess, E. A., Gallagher, C. P., Ogrin, F. Y., Hibbins, A. P., Pasc, A., Sanchez-Sanchez, A., Fierro, V., Celzard, A.
Předmět:
Zdroj: Journal of Applied Physics; 2017, Vol. 121 Issue 16, p1-9, 9p, 1 Black and White Photograph, 2 Diagrams, 6 Graphs
Abstrakt: The microwave-absorbing properties of a heterostructure consisting of an ordered monolayer of porous glassy carbon spheres were experimentally and theoretically investigated in the Ka-band (26-37GHz) frequency range. The electromagnetic response of such a "moth-eye"-like all-carbon metasurface at a normal incidence angle was modelled on the basis of long-wave approximation. Modelling parameters in the Ka-band were used to estimate and predict the absorption properties of monolayers in free space in the range 1-40 GHz. Experimental and theoretical results demonstrate that a metasurface based on porous glassy carbon spheres is an inert, lightweight, compact, and perfectly absorbing material for designing new effective microwave absorbers in various practically used frequency ranges. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index