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Traveling surface-waves longitudinally couple several metallic microcavities.
A phase-locking scheme for plasmonic lasers is developed in which traveling surface-waves longitudinally couple several metallic microcavities in a surface-emitting laser array. Multi-watt emission is demonstrated for single-mode terahertz lasers in which more photons are radiated from the laser array than those absorbed within the array as optical losses. Credit: Yuan Jin, Lehigh University.
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