Au double nanopillars with nanogap for plasmonic sensor.

  title={Au double nanopillars with nanogap for plasmonic sensor.},
  author={Wakana Kubo and Shigenori Fujikawa},
  journal={Nano letters},
  volume={11 1},
We propose a simple, precise, and wafer-scale fabrication technique for Au double nanopillar (DNP) arrays with nanogaps of several tens of nanometers. An Au DNP was simply constructed by alternately laminating thin layers of Au and polymer on a template and selectively removing the thin layers. This DNP array was expected to exhibit a specific plasmonic property induced by its narrow gap. When measuring the refractive index sensitivity (RIS), Au DNP arrays with 33 nm gaps exhibited a high RIS… CONTINUE READING
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