Strong Coupling of Epsilon-Near-Zero Phonon Polaritons in Polar Dielectric Heterostructures

Abstract

We report the first observation of epsilon near zero (ENZ) phonon polaritons in an ultrathin AlN film fully hybridized with surface phonon polaritons (SPhP) supported by the adjacent SiC substrate. Employing a strong coupling model for the analysis of the dispersion and electric field distribution in these hybridized modes, we show that they share the most prominent features of the two precursor modes. The novel ENZ-SPhP coupled polaritons with a highly propagative character and deeply sub-wavelength light confinement can be utilized as building blocks for future infrared and terahertz (THz) nanophotonic integration and communication devices.

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Cited by in corpus (24)

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• Microcavity phonon polaritons from weak to ultrastrong phonon-photon coupling
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• A Semi-Classical View on Epsilon-Near-Zero Resonant Tunneling Modes in Metal/Insulator/Metal Nanocavities
• Topological phonon polaritons in one-dimensional non-Hermitian nanoparticle chains
• Second Harmonic Generation from Phononic Epsilon-Near-Zero Berreman Modes in Ultrathin Polar Crystal Films
• Vibrational Coupling to Epsilon-Near-Zero Waveguide Modes
• Theory of Optical Nonlocality in Polar Dielectrics
• Berreman Embedded Eigenstates for Narrowband Absorption and Thermal Emission
• Enhanced Light-Matter Interaction in B-10 Monoisotopic Boron Nitride Infrared Nanoresonators
• Strong coupling of ionising transitions
• Second harmonic generation from strongly coupled localized and propagating phonon-polariton modes
• Surface Polariton-Like s-Polarized Waveguide Modes in Switchable Dielectric Thin-Films on Polar Crystals
• Nonlocal Scattering Matrix Description of Anisotropic Polar Heterostructures
• A Controllable and Highly Propagative Hybrid Surface Plasmon-Phonon Polariton in a CdZnO-based Two-Interface System
• Layer-Resolved Resonance Intensity of Evanescent Polariton Modes in Anisotropic Multilayers
• Dispersion engineering of infrared epsilon-near-zero modes by strong coupling to optical cavities
• Polaritonic quantisation in nonlocal polar material
• Insights into hyperbolic phonon polaritons in hBN using Raman scattering from encapsulated transition metal dichalcogenide layers
• Nanometer-scale Cavities for Mid-infrared Radiation via Image Phonon Polariton Resonators
• Experimental observation of Berreman modes in uniaxial anisotropic nanoporous alumina film on aluminium substrate
• Phonon-mediated dark to bright plasmon conversion
• Quantization of Polaritons Confined in Dielectric Structures