Abstract Reconfigurable metasurface absorbers enable collecting or emitting radiation within selected frequency bands. It is thus necessary to decipher such behavior for many applications, including plasmonic energy harvesting, radiative cooling and thermal emitters. In this article, we propose a compact reconfigurable vanadium dioxide (VO 2 )-based absorber/emitter demonstrate switching betwee...

Significant structural vibration is an undesirable characteristic in helicopter flight that leads to structural fatigue, poor ride quality for passengers and high acoustic signature for the vehicle. Previous Individual Blade Control (IBC) techniques based on piezoelectric actuator schemes to reduce these effects have been hindered by electromechanical limitations of piezoelectric actuators. The...

Abstract A tunable three-band absorber has been proposed and investigated in the terahertz (THz) with graphene strips. Three perfect absorption is elaborately analyzed electrical field induced surface current distribution. Owing to unique character of graphene, position intensity three peaks are flexibly regulated different Fermi energy chemical potential. Meanwhile, an on off modulation achiev...