New Horizons in Near-Zero Refractive Index Photonics and Hyperbolic Metamaterials

Michaël Lobet, Nathaniel Kinsey, Iñigo Liberal, Humeyra Caglayan, Paloma A. Huidobro, Emanuele Galiffi, Jorge Ricardo Mejía-Salazar, Giovanna Palermo, Zubin Jacob, Nicolò Maccaferri

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Abstract

The engineering of the spatial and temporal properties of both the electric permittivity and the refractive index of materials is at the core of photonics. When vanishing to zero, those two variables provide efficient knobs to control light–matter interactions. This Perspective aims at providing an overview of the state of the art and the challenges in emerging research areas where the use of near-zero refractive index and hyperbolic metamaterials is pivotal, in particular, light and thermal emission, nonlinear optics, sensing applications, and time-varying photonics.
Original languageEnglish
Pages (from-to)3805-3820
Number of pages16
JournalACS Photonics
Volume10
Issue number11
DOIs
Publication statusPublished - 15 Nov 2023

Keywords

  • hyperbolic metamaterials
  • near-zero refractive index photonics
  • nonlinear optics
  • sensing
  • thermal emission engineering
  • time-varying photonics

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