1. Fully carbon metasurface: Absorbing coating in microwaves
- Author
-
Alastair P. Hibbins, Andreea Pasc, Dzmitry Bychanok, E. A. Burgess, Gleb Gorokhov, Alain Celzard, Polina Kuzhir, Angela Sanchez-Sanchez, Feodor Y. Ogrin, C. P. Gallagher, Vanessa Fierro, Sijin Li, K. Piasotski, and Darya Meisak
- Subjects
010302 applied physics ,Materials science ,business.industry ,General Physics and Astronomy ,chemistry.chemical_element ,02 engineering and technology ,engineering.material ,Glassy carbon ,021001 nanoscience & nanotechnology ,01 natural sciences ,7. Clean energy ,Optics ,chemistry ,Coating ,0103 physical sciences ,Monolayer ,engineering ,Optoelectronics ,SPHERES ,0210 nano-technology ,business ,Porosity ,Absorption (electromagnetic radiation) ,Carbon ,Microwave - Abstract
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 (26–37 GHz) 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.
- Published
- 2017