Multilayer metal-oxide-metal nanopatterns via nanoimprint and strip-off for multispectral resonance
2018
Abstract A fabrication technology for multispectral plasmonic resonators is presented on a basis of metal-insulator-metal (MIM) nanopattern arrays. Resonators comprised of MIM nanopatterns were fabricated using nanoimprint-based transfer and strip-off following MIM depositions. Two different kinds of configuration (web and hole) were developed for three and five layers of MIMs. The corresponding measured transmittance and reflectance spectroscopies were compared to their counterpart finite difference time domain (FDTD) simulation results. The results implied various plasmonic resonance couplings occurred at different locations around the metal structures, dependent on the layer and array configuration. By tuning the model geometry and simulation conditions, agreement between the experimental results and simulation was achieved. This work is believed to provide a viable fabrication method for multispectral resonance filters or sensors.
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