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Opt Express. 2007 Dec 24;15(26):17948-53.

Perfect 4-way splitting in nano plasmonic X-junctions.

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  • 1EE Department, Technion, Haifa 32000, Israel.


A plasmon wave is perfectly split to 4 identical waves when encountering nano intersection. This is substantially different from the dielectric waveguides case where power coupling to vertical segments is negligible. When larger multimode plasmonic junction is realized--beating and retardation come into effect. The analysis of the plasmonic coupling in this device is helpful also in understanding plasmonic assisted enhanced transmission.

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