Reconfigurable Mid-Infrared Hyperbolic Metasurfaces using Phase-Change Materials

Abstract

Metasurfaces offer the potential to control light propagation at the nanoscale for applications in both free-space and surface-confined geometries. Existing metasurfaces frequently utilize metallic polaritonic elements with high absorption losses, and/or fixed geometrical designs that serve a single function. Here we overcome these limitations by demonstrating a reconfigurable hyperbolic metasurface comprising of a heterostructure of isotopically enriched hexagonal boron nitride (hBN) in direct contact with the phase-change material (PCM) vanadium dioxide (VO2). Spatially localized metallic and dielectric domains in VO2 change the wavelength of the hyperbolic phonon polaritons (HPhPs) supported in hBN by a factor 1.6 at 1450cm-1. This induces in-plane launching, refraction and reflection of HPhPs in the hBN, proving reconfigurable control of in-plane HPhP propagation at the nanoscale15. These results exemplify a generalizable framework based on combining hyperbolic media and PCMs in order to design optical functionalities such as resonant cavities, beam steering, waveguiding and focusing with nanometric control.

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Cited by in corpus (28)

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• Hyperbolic Metamaterials: From Dispersion Manipulation to Application
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• Polariton Nanophotonics using Phase Change Materials
• Hybridized hyperbolic surface phonon polaritons at α-MoO3 and polar dielectric interfaces
• Enhanced Infrared Emission by Thermally Switching the Excitation of Magnetic Polariton with Scalable Microstructured VO2 Metasurfaces
• Refractive Index-Based Control of Hyperbolic Phonon-Polariton Propagation
• Space-Time Modulated Metasurfaces with Spatial Discretization: Free-Space N-path Systems
• Hybrid Longitudinal-Transverse Phonon Polaritons
• Active tuning of highly anisotropic phonon polaritons in van der Waals crystal slabs by gated graphene
• Reconfigurable Multistate Optical Systems Enabled by VO2 Phase Transitions
• Perspective: Phonon polaritons for infrared optoelectronics
• Phase change materials for nano-polaritonics: a case study of hBN/VO2 heterostructures
• Negative reflection and negative refraction in biaxial van der Waals materials
• Direct programming of confined Surface Phonon Polariton Resonators using the plasmonic Phase-Change Material In${}_3$SbTe${}_2$
• Interplay among Work Function, electronic structure and stoichiometry in nanostructured vanadium oxides films
• Probing hyperbolic polaritons using infrared attenuated total reflectance micro-spectroscopy
• Unidirectional Ray Polaritons in Twisted Asymmetric Stacks
• Tunable optical topological transitions of plasmon polaritons in WTe2 van der Waals films
• Surface Polariton-Like s-Polarized Waveguide Modes in Switchable Dielectric Thin-Films on Polar Crystals
• Atomic origin for hydrogenation promoted bulk oxygen vacancies removal in vanadium dioxide
• Layer-Resolved Resonance Intensity of Evanescent Polariton Modes in Anisotropic Multilayers
• Bonding and antibonding modes in metal-dielectric-metal plasmonic antennas for dual-band applications
• Wafer-size VO2 film prepared by water-vapor oxidant
• Synthesis of V${}_2$O${}_3$ Nanoplates
• Insights into hyperbolic phonon polaritons in hBN using Raman scattering from encapsulated transition metal dichalcogenide layers
• Polariton microfluidics for nonreciprocal dragging and reconfigurable shaping of polaritons
• Rapid synthesis of dual-element isotope-enriched alpha-MoO3 crystals by reactive vapor transport