Open AccessCarbon films as perfect electromagnetic wave absorbers and anti‐reflectors
Author(s) -
Batrakov Konstantin,
Paddubskaya Alesya,
Kuzhir Polina
Publication year - 2017
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2016.0745
Subject(s) - materials science , coating , carbon fibers , porosity , dielectric , electromagnetic radiation , microwave , substrate (aquarium) , conductivity , reflection loss , reflection (computer programming) , composite material , optics , optoelectronics , physics , oceanography , quantum mechanics , composite number , computer science , programming language , geology
It is shown that thin carbon coating with thicknesses, depending on its structure and porosity, ranging from tens of nanometres to tens of microns can absorb almost all incident microwave radiation without reflection. Special conditions on dielectric properties of substrate and conductivity of carbon material, which are necessary for the realisation of such a perfect absorber, are derived. The conductance of the carbon coating can then be controlled by proper porosity.