Photogalvanic edge currents in WTe2 are enhanced by plasmonic self-cavity modes, producing a geometry-tunable terahertz emission resonance near 0.25 to 0.4 THz.
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Purcell enhancement of photogalvanic currents in a van der Waals plasmonic self-cavity
Photogalvanic edge currents in WTe2 are enhanced by plasmonic self-cavity modes, producing a geometry-tunable terahertz emission resonance near 0.25 to 0.4 THz.