Optimization of Parameters and Characteristics of Broadband THz Absorbers Based on 2D Lattices of Graphene Ribbons on Multilayer Substrates

摘要

Multilayer 2D periodic lattices of graphene microribbons, which absorb almost 100% of incident energy at surface plasmon polariton resonance, have been theoretically investigated. It is suggested to increase the broadbandness of absorbers by placing 2 to 3 parallel graphene ribbons with close lengths in a unit cell of the 2D lattice.