Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3103208
Keywords
metamaterials; nanoparticles; plasmons; polaritons
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Nanostructured metamaterials, especially arrays of metallic nanoparticles, which sustain the excitation of localized plasmon polaritons, provide excellent opportunities to mold the flow of light in the linear regime. We suggest a metamaterial structure whose properties are determined not only by its inner geometry but also by its entire shape. We call this structure a metamaterial nanotip. We evaluate the potential of this nanotip to control the size and the location of the field enhancement. Two-dimensional implementations of this metamaterial nanotip were comprehensively numerically simulated and confirm the expected, physically distinct regimes of operation.
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