Wide-angle perfect absorber/thermal emitter in the THz regime

Abstract

We show that a perfect absorber/thermal emitter exhibiting an absorption peak of 99.9% can be achieved in metallic nanostructures that can be easily fabricated. The very high absorption is maintained for large angles with a minimal shift in the center frequency and can be tuned throughout the visible and near-infrared regime by scaling the nanostructure dimensions. The stability of the spectral features at high temperatures is tested by simulations using a range of material parameters.

Submitted to Phys. Rev. Lett

References in corpus (2)

• A Perfect Metamaterial Absorber
• A metamaterial absorber for the terahertz regime: Design, fabrication and characterization

Cited by in corpus (5)

• Wide-angle and polarization-independent chiral metamaterial absorber
• One- and two-dimensional photo-imprinted diffraction gratings for manipulating terahertz waves
• Spatially coherent surface resonance states derived from magnetic resonances
• Theory of light reflection and transmission by a plasmonic nanocomposite slab: Emergence of broadband perfect absorption
• Unity absorbance layers - optimal design criteria