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 …

Anisotropic planar polaritons-hybrid electromagnetic modes mediated by phonons,
plasmons, or excitons-in biaxial two-dimensional (2D) van der Waals crystals have attracted …

Polariton pulses—transient light-matter hybrid excitations—traveling through anisotropic
media can lead to unusual optical phenomena in space and time. However, studying these …

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 …

Thin layers of in-plane anisotropic materials can support ultraconfined polaritons, whose
wavelengths depend on the propagation direction. Such polaritons hold potential for the …

The coupled interactions among the fundamental carriers of charge, heat, and
electromagnetic fields at interfaces and boundaries give rise to energetic processes that …

Polaritons are quasi-particles that combine light with matter, enabling precise control of light
at deep subwavelength scales. The excitation and propagation of polaritons are closely …

Structural anisotropy in crystals is crucial for controlling light propagation, particularly in the
infrared spectral regime where optical frequencies overlap with crystalline lattice …

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 …

Anisotropic materials with oppositely signed dielectric tensors support hyperbolic polaritons,
displaying enhanced electromagnetic localization and directional energy flow. However, the …