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20 November 2012 Ultracompact racetrack resonators based on hybrid plasmonic waveguides
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To promote the miniaturization and integration of devices, various optical components based on hybrid plasmonic waveguides have been proposed such as microring resonators and Y-splitter. However, their footprints are strongly limited by the radiation loss of the bends. Here, we propose and analyze a novel hybrid plasmonic waveguide (NHPW) which can be used to realize sharp bend with little radiation loss. Based on NHPW, ultracompact racetrack resonators are realized. A racetrack resonator with an outer radius of 0.5μm and straight waveguide of 0.1μm is constructed, which has an extinction ration of 12.56dB and a significantly large free space range of 265nm.
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Liangxiao Tang, Feifei Hu, Huaxiang Yi, and Zhiping Zhou "Ultracompact racetrack resonators based on hybrid plasmonic waveguides", Proc. SPIE 8564, Nanophotonics and Micro/Nano Optics, 856417 (20 November 2012);

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