Terahertz Volume Plasmon-Polariton Modulation in All-Dielectric Hyperbolic Metamaterials

The development of plasmonics and related applications in the terahertz range faces limitations due to the intrinsic high electron density of the standard metals. All-dielectric systems are profitable alternatives, which allows for customized modulation of the optical response upon doping. Here, plasmon-based hyperbolic metamaterials are realized stacking doped III-V semiconductors that have been shown to be optically active in the terahertz spectral region. By using a multi-physics multi-scale theoretical approach, the role of doping and geometrical characteristics (e.g., thickness, composition, grating) in the modulation of high-k plasmon-polariton modes across the metamaterial is unraveled.

Duke Scholars

Author Stefano Curtarolo Thomas Lord Department of Mechanical Engineering and Materia ...