The integration of dissimilar materials into heterostructures has become a powerful tool for
engineering interfaces and electronic structure. The advent of 2D materials has provided …

Moiré superlattices, the artificial quantum materials, have provided a wide range of
possibilities for the exploration of completely new physics and device architectures. In this …

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 …

Twisted van der Waals heterostructures have latterly received prominent attention for their
many remarkable experimental properties and the promise that they hold for realizing …

Plasmonic gold nanoparticles have been used increasingly in solid-state systems because
of their applicability in fabricating novel sensors, heterogeneous catalysts, metamaterials …

The discovery of moiré superlattices (MSLs) opened an era in the research of 'twistronics'.
Engineering MSLs and realizing unique emergent properties are key challenges. Herein, we …

Twisted two-dimensional bilayer materials exhibit many exotic electronic phenomena.
Manipulating the 'twist angle'between the two layers enables fine control of the electronic …

For more than seven decades, hexagonal boron nitride (hBN) has been employed as an
inert, thermally stable engineering ceramic; since 2010, it has also been used as the optimal …

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 …

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 …