ULTRATHIN BILATERAL FREQUENCY- AND POLARIZATION-SELECTIVE ELECTROMAGNETIC RADIATION ABSORBING METASURFACES
Description:
A multiband tunable selective absorber with a metal shielding layer, a graphene layer and a combination of gold rings deposited on a graphene layer is proposed. Variational analysis made it possible to optimize the structural parameters of the metasurface to achieve three close independent absorption peaks in the wavelength range from 8 to 12 microns.
Appointment:
To create ultrathin frequency- and polarization-selective electromagnetic radiation absorbing metasurfaces of multi-peak absorption, it is proposed to use plane-parallel structures with ring resonators of variable diameter having a flat metal layer at the base. The advantage of these structures is the presence of several independent absorption peaks.
From a practical point of view, the developed metasurfaces can be used for the purpose of shielding electronic devices. At the same time, metasurfaces absorb radiation of a given range exclusively selectively, allowing waves of other frequencies outside this range to be reflected from the structure in the opposite direction practically without signal attenuation..
Field of application
The results of the study can be used in the design of devices and materials necessary for the creation of polarization filters and switches of microwave radiation of a new type based on the concept of multi-peak absorption, for example, frequency-selective and polarization reflectors, interrupters, radiation polarization converters..
SERGEI KHAKHOMOV
HEAD OF THE SCIENTIFIC-RESEARCH LABORATORY “NEW MATERIALS AND TECHNOLOGIES”|
DOCTOR OF PHYSICS AND MATHEMATICS, DOCENT
Phone. +(375 232) 51 00 70, FAX: +(375 232) 51-00-77,
e-mail: khakh@gsu.by, https://nis.gsu.by
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