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Terahertz plasmonic crystals of several periods are formed from a GaAs/AlGaAs 2D electron gas. The coupling between defect and crystal surface states known as Tamm states induces a transparency in the plasmonic crystal band gap.
We present the development of tunable, narrow-band plasmonic millimeter wave detectors. The current generation of this class of detector monolithically integrates a 2-D plasmonic absorber and a bolometric sensor in a GaAs/AlGaAs HEMT located at the vertex of a broad-band antenna. Response and transport measurements demonstrate absorption by high-order plasmon modes sensed by the integrated bolometer...
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