Plasmonic nanofocusing with a metallic pyramid and an integrated C-shaped aperture
Lindquist, Nathan C.
Johnson, Timothy W.
Norris, David J.
- Journal Article
Rights / licenseCreative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported
We demonstrate the design, fabrication and characterization of a near-field plasmonic nanofocusing probe with a hybrid tip-plus-aperture design. By combining template stripping with focused ion beam lithography, a variety of aperture-based near-field probes can be fabricated with high optical performance. In particular, the combination of large transmission through a C-shaped aperture aligned to the sharp apex (<10 nm radius) of a template-stripped metallic pyramid allows the efficient delivery of light—via the C-shaped aperture—while providing a nanometric hotspot determined by the sharpness of the tip itself Show more
Journal / seriesScientific Reports
Pages / Article No.
PublisherNature Publishing Group
SubjectSurface patterning; Scanning probe microscopy; Nanophotonics and plasmonics; Imaging techniques
Organisational unit03875 - Norris, David J.
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