Heavily-doped III-V semiconductors have been shown to be good plasmonic materials in the mid- to far-infrared. A superlattice comprising alternating doped and undoped layers can act as a hyperbolic metamaterial (HMM). HMMs have an open, hyperbolic isofrequency surface enabling the propagation of light with large wavevectors, called volume plasmonic polaritons (VPPs). In this presentation, I will focus on semiconductor-based HMMs, explaining how material choice impacts HMM performance, showing far-field thermal emission properties, and demonstrating strong coupling between the HMM VPP modes and epitaxially embedded quantum wells.
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