In this brief review, we summarize and elaborate on some of the nomenclature of polaritonic
phenomena and systems as they appear in the literature on quantum materials and …

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

Polaritons in anisotropic materials result in exotic optical features, which can provide
opportunities to control light at the nanoscale,,,,,,,,–. So far these polaritons have been …

The lattice symmetry of a crystal is one of the most important factors in determining its
physical properties. Particularly, low-symmetry crystals offer powerful opportunities to control …

Polaritons are a hybrid class of quasiparticles originating from the strong and resonant
coupling between light and matter excitations. Recent years have witnessed a surge of …

Enhanced light-matter interactions are the basis of surface-enhanced infrared absorption
(SEIRA) spectroscopy, and conventionally rely on plasmonic materials and their capability to …

Phonon polaritons in van der Waals materials can strongly enhance light–matter interactions
at mid-infrared frequencies, owing to their extreme field confinement and long lifetimes …

Phonon polaritons enable light confinement at deep subwavelength scales, with potential
technological applications, such as subdiffraction imaging, sensing and engineering of …

Highly confined and low-loss polaritons are known to propagate isotropically over graphene
and hexagonal boron nitride in the plane, leaving limited degrees of freedom in …

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 …