Metamaterial nanotips

TL;DR

This paper introduces a novel metamaterial nanotip structure that leverages shape and geometry to control light at the nanoscale, with simulations confirming its ability to manipulate field enhancement.

Contribution

It proposes a new shape-dependent metamaterial nanotip design and demonstrates its potential for controlling localized light enhancement through numerical simulations.

Findings

Numerical simulations confirm distinct regimes of operation.

Shape influences the control of field enhancement.

Potential applications in nanoscale light manipulation.

Abstract

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 \emph{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.