Polaritons are hybrid excitations of matter and photons. In recent years, polaritons in van der
Waals nanomaterials—known as van der Waals polaritons—have shown great promise to …

Two-dimensional (2D) materials including graphene, transition metal dichalcogenides, black
phosphorus, MXenes, and semimetals have attracted extensive and widespread interest …

Photonic crystals (PhCs) are a kind of artificial structures that can mold the flow of light at
will. Polaritonic crystals (PoCs) made from polaritonic media offer a promising route to …

Optical metamaterials have presented an innovative method of manipulating light.
Hyperbolic metamaterials have an extremely high anisotropy with a hyperbolic dispersion …

Transition metal dichalcogenides (TMDs) attract significant attention due to their remarkable
optical and excitonic properties. It was understood already in the 1960s and recently …

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 …

Recent discoveries of Mott insulating and unconventional superconducting states in twisted
bilayer graphene with moiré superlattices have not only reshaped the landscape of …

Semiconductor plasmonics has become a frontier for light manipulation beyond the
diffraction limit, offering a broader spectral range and higher flexibility of plasmon …

Weyl semimetals are topological materials whose electron quasiparticles obey the Weyl
equation. They possess many unusual properties that may lead to new applications. This is …

Recent advances in twistronics of low-dimensional materials, such as bilayer graphene and
transition-metal dichalcogenides, have enabled a plethora of unusual phenomena …