Polaritons, originating from the interactions between photons and material excitations, have
attracted attention because of their strong field compression and deeply subdiffractional …

Here, we review the progress and most recent advances in phonon-polaritonics, an
emerging and growing field that has brought about a range of powerful possibilities for mid …

Polaritons formed by the coupling of light and material excitations enable light-matter
interactions at the nanoscale beyond what is currently possible with conventional optics …

Hexagonal boron nitride has been proposed as an excellent candidate to achieve
subwavelength infrared light manipulation owing to its polar lattice structure, enabling …

We selectively excite and study two new types of phonon-polariton guided modes that are
found in hexagonal boron nitride thin flakes on a gold substrate. Such modes show …

Hyperbolic phonon polaritons have recently attracted considerable attention in
nanophotonics mostly due to their intrinsic strong electromagnetic field confinement …

Phonon-polaritons (PhPs) arise from the strong coupling of photons to optical phonons.
They offer light confinement and harnessing below the diffraction limit for applications …

Mid-infrared nanoimaging and spectroscopy of two-dimensional (2D) materials have been
limited so far to scattering-type scanning near-field optical microscopy (s-SNOM) …

Phonon polaritons—light coupled to lattice vibrations—in polar van der Waals crystals offer
unprecedented opportunities for controlling light at the nanoscale due to their anisotropic …

Hexagonal boron nitride (hBN) hosts phonon polaritons (PhP), hybrid light–matter states that
facilitate electromagnetic field confinement and exhibit long-range ballistic transport …