Localized plasmon resonance of a metal nanoantenna is determined by its size, shape and environment. Here, we diminish the size dependence by using multilayer metamaterials as epsilon-near-zero (ENZ) substrates.
The papers by Mohsin and Daria on HMM based ENZ substrates have been published.
![](https://research.tuni.fi/uploads/2020/08/90f69d34-shematics-1600x852.jpg)