The authors of this Spotlight article created a custom holder for an end facet-polished bundle of single mode fibers, allowing parallel fabrication of plasmonic nanodot arrays on several fibers at once. The prepared sample was compatible with their spin-coater, e-beam writer, and reactive ion etcher, making fabrication possible with a standard lithography setup. The measured extinction of the nanoarray on fiber was higher than the extinction of the same structure fabricated on a planar substrate. This work shows how current wafer-based manufacturing technologies can be adapted to produce fiber-coupled plasmonic near-field sensors.
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