The integration of functional nanomaterials and heterostructures with photonic architectures
has laid the foundation for important photonic and optoelectronic applications. The advent of …

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 …

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 …

Negative refraction provides a platform to manipulate mid-infrared and terahertz radiation for
molecular sensing and thermal emission applications. However, its implementation based …

The emergence of a topological transition of the polaritonic dispersion in twisted bilayers of
anisotropic van der Waals materials at a given twist angle—the photonic magic angle …

Abstract 2D monolayers supporting a wide variety of highly confined plasmons, phonon
polaritons, and exciton polaritons can be vertically stacked in van der Waals …

The discovery of the topological transition in twisted bilayer (tBL) materials has attracted
considerable attention in nano‐optics. In the analogue of acoustics, however, no such …

Natural hyperbolic materials (HMs) in two dimensions (2D) have an extraordinarily high
anisotropy and a hyperbolic dispersion relation. Some of them can even sustain hyperbolic …

Various methods for controlling the in-plane propagation direction and topological
transitions of phonon polaritons (PhPs) in anisotropic van der Waals (vdW) materials rely on …

Highly anisotropic materials show great promise for spatial control and the manipulation of
polaritons. In-plane hyperbolic phonon polaritons (HPhPs) supported by α-phase …