META 2021, META'12

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Broad band focusing and demultiplexing of surface plasmons
Lin Li, Tao Li, Shuming Wang, Shining Zhu

Last modified: 2012-01-03


We demonstrate experimentally a broad band focusing (bandwidth ~100nm) and a demultiplexing element (resolution ~12nm) of surface plasmon polariton (SPP) waves by well-designed nonperiodic nanoarray. Moreover, sublattice arrays are developed to achieve an improved demultiplexer and confocal SPP beams. The proposed scheme is designed totally in planar dimension, which indicates more practical application in photonic integrations.


Surface plasmon polariton; broadband focusing; wavelength demultiplexer