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arXiv · 2208.05299

Epsilon-near-zero nanoparticles

Ibrahim Issah·Jesse Pietila·Tommi Kujala·Matias Koivurova·Humeyra Caglayan·Marco Ornigotti
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Abstract

In this work, we propose epsilon-near-zero (ENZ) nanoparticles formed of metal and dielectric bilayers and employ the effective medium approach for multilayered nanospheres to study their optical response. We obtained a passive tunable ENZ region by varying the radii of the proposed bilayer nanospheres, ranging from visible to near-IR. In addition, we present the absorption and scattering cross-section of ENZ nanoparticles using an open-source, transfer-matrix-based software (STRATIFY). %, and a commercial FDTD software (LUMERICAL). The proposed ENZ nanoparticle is envisioned to be experimentally realized using chemical synthesis techniques.

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Ibrahim Issah, Jesse Pietila, Tommi Kujala, Matias Koivurova, Humeyra Caglayan, Marco Ornigotti. 2022-08-10. Epsilon-near-zero nanoparticles. https://doi.org/10.1103/physreva.107.023501

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