Research article

Hyperbolic dispersion metamaterials and metasurfaces

¹ Department of Physics, University of Calabria, Via P. Bucci, Rende, CS 87036, Italy
² CNR NANOTEC-Istituto di Nanotecnologia, UOS Cosenza, Rende, CS 87036, Italy
³ Centre for Disruptive Photonic Technologies, The Photonic Institute, Nanyang Technological University, 637371 Singapore
⁴ Department of Physics, Case Western Reserve University, 10600 Euclid Avenue, Cleveland, OH 44106, USA

^* e-mail: giuseppe.strangi@case.edu

Received: 29 October 2020
Accepted: 20 December 2020
Published online: 19 January 2021

Abstract

In recent years a wide interest has been spurred by the inverse design of artificial materials for nano-biophotonic applications. In particular, the extreme optical properties of artificial hyperbolic dispersion nanomaterials allowed to access new physical effects and mechanisms. The unbound isofrequency surfaces of hyperbolic metamaterials and metasurfaces allow to access virtually infinite photonic density of states, ultrahigh confinement of electromagnetic fields and anomalous wave propagation. Here, we report the most relevant physical properties of different hyperbolic dispersion material geometries and how they allow to control light-matter interaction at the single nanometer scale, in biological matter.