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An integrated surface-plasmon source
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DOI：10.1364/OE.18.010609.png)
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Abstract
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A compact and versatile source of coherent surface-plasmon polaritions (SPPs) is demonstrated by end-coupling a laser diode operating at 1.46 mu m to a plasmonic waveguide integrated on the same microchip. With an optimized overlap between the spatial-modes of the laser and a planar-stripe waveguide, a high coupling efficiency of similar to 36% is achieved, that computations show could approach similar to 60% with smaller, readily achievable gaps between laser and waveguide. This integrated and electrically-activated source, with an available SPP power limited only by the laser diode, appears ideally suited for directly driving plasmonic circuitry or surface-enhanced sensors. (C) 2010 Optical Society of America
Keywords:
WAVE-GUIDE
LASERS
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3.3
Papers:
6.1W
Citations:
14.3W
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A hybrid plasmonic waveguide for subwavelength confinement and long-range propagation.png)
NATURE PHOTONICS
NATURE PHOTONICSIF32.9
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