@conference{
author = "Obradov, Marko and Jakšić, Zoran and Mladenović, Ivana and Vuković, Slobodan and Isić, Goran and Vasiljević-Radović, Dana and Lamovec, Jelena",
year = "2017",
abstract = "Plasmonic nanocomposites are a new class of
materials that offers unprecedented opportunities to tailor the
optical response, including the possibility to design their spectral
and spatial dispersion at will. This includes the optical
parameters rarely or never met in nature, which opens a path
toward plasmonic metamaterials and the wide new area of
transformation optics. Responsible for such a unique behavior
are bound surface modes propagating along interfaces between
materials with different signs of relative dielectric permittivity
known as surface plasmon polaritons (SPP). Most metals possess
negative relative permittivity in optical range due to the existence
of free electron plasma. However, they also exhibit large
absorption losses and are bound to a given spectral range defined
by the metal itself, which is the reason why alternative plasmonic
materials are being actively sought upon. One possible way to
extend the toolbox of available materials is to use alternating
metal-dielectric or metal-metal layers – the one-dimensional
plasmonic crystals. Typically gold and silver are used for the
metal part due to their large conductance and generally
favorable properties. In this contribution we perform an analysis
of the suitability of the use of copper for plasmonic
nanocomposites. Its oxidation, the main barricade towards its
more widespread use in plasmonics, is avoided by combining it
with nickel. We utilize ab initio analysis by 2D finite element
modeling and realistic material parameters to assess different
electromagnetic modes. Tailorability of the response is attained
by simple changing of the Cu to Ni fill factor. The analyzed CuNi plasmonic crystals are convenient for simple, low cost
biochemical sensors and superabsorbers.",
publisher = "Society for Electronics, Telecommunications, Computers, Automatic Control and Nuclear Engineering",
journal = "Proceedings of 4th International Conference on Electrical, Electronics and Computing Engineering, IcETRAN 2017, June 05-08, Kladovo, Serbia",
title = "Tailorable spectral dispersion of copper-nickel 1D plasmonic crystals",
number = "MOI 3.2.",
pages = "1-5",
url = "https://hdl.handle.net/21.15107/rcub_cer_5711"
}