Work

Metamaterials designed for enhanced ENZ properties

Year: 2020

Type: article

Abstract: We examine layered metamaterial structures consisting of alternating films of epsilon-near-zero (ENZ) and dielectric material, and show that for such a stack it is possible to enhance the refractive, reflective or absorptive properties of the ENZ. The proposed structure takes advantage of resonances from several interfaces, guided modes, and plasmon excitations to achieve the desired enhancement, and it is not an effective medium. We use analytical modeling tools to show how the different degrees of freedom affect the properties of the stack, and propose experimentally feasible parameters for such structures.

Source: New Journal of Physics

DOI: 10.1088/1367-2630/abb387

Authors: Matias Koivurova, Tommi Hakala, Jari Turunen, Ari T Friberg, Marco Ornigotti, Humeyra Caglayan

Institutions: Tampere University, University of Tampere, University of Eastern Finland

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,109

Funder: Academy of Finland