Electromagnetic heating effect of graphene absorber

In this work, a narrowband and a broadband graphene-based absorber models are established to analyze theirs thermal effects by using COMSOL software. Exciting by high-frequency electromagnetic (EM) waves, the graphene-based absorber will have a thermal effect, due to the energy transform from EM to thermal, which results in an increase of temperature of the absorber. Thermal profiles of narrowband and broadband graphene absorber verified by infrared camera testing have good agreement with the simulated results.