4D Optically Reconfigurable Volumetric Metamaterials

Dmitry Dobrykh, Anna Mikhailovskaya, Pavel Ginzburg, Dmitry Filonov*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Metamaterials are artificially created media, which allow introducing additional degrees of freedom into electromagnetic design by controlling constitutive material parameters. Reconfigurable time-dependent metamaterials can further enlarge those capabilities by introducing a temporal variable as an additional controllable parameter. Herein, a first-of-its-kind reconfigurable volumetric metamaterial-based scatterer is demonstrated, wherein the electromagnetic properties are controlled dynamically with light. In particular, hybridized resonances in arrays of split ring resonators give rise to a collective mode that presents properties of artificial high-frequency magnetism for centimeter waves. Resonant behavior of each individual ring is controlled with a photocurrent, which allows the fast tuning of macroscopic effective permeability. Thus, the artificial gigahertz magnon resonant excitation within a subwavelength spherical scatterer is governed by light intensity. 4D control over electromagnetic scattering in both space and time opens new avenues for modern applications, including wireless communications and automotive radars to name just a few.

Original languageEnglish
Article number2000159
JournalPhysica Status Solidi - Rapid Research Letters
Volume14
Issue number8
DOIs
StatePublished - 1 Aug 2020

Keywords

  • artificial magnon resonance
  • metamaterials
  • reconfigurable materials

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