An Ultra-Wideband THz/IR Metamaterial Absorber Based on Doped Silicon
An Ultra-Wideband THz/IR Metamaterial Absorber Based on Doped Silicon
Metamaterial-based absorbers have been extensively investigated in the terahertz (THz) range with ever increasing performances. In this paper, we propose an all-dielectric THz absorber based on doped silicon. The unit cell consists of a silicon cross resonator with an internal cross-shaped air cavity. Numerical results suggest that the proposed absorber …