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 …

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 …

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

The full manipulation of intrinsic properties of electromagnetic waves has become the
central target in various modern optical technologies. Optical metasurfaces have been …

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 …

Various optical crystals possess permittivity components of opposite signs along different
principal directions in the mid-infrared regime, exhibiting exotic anisotropic phonon …

Polaritons—hybrid light–matter excitations—enable nanoscale control of light. Particularly
large polariton field confinement and long lifetimes can be found in graphene and materials …

Control over charge carrier density provides an efficient way to trigger phase transitions and
modulate the optoelectronic properties of materials. This approach can also be used to …

The isolation of the first two-dimensional material, graphene–a monolayer of carbon atoms
arranged in a hexagonal lattice-opened new exciting opportunities in the field of condensed …