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

Polaritons, originating from the interactions between photons and material excitations, have
attracted attention because of their strong field compression and deeply subdiffractional …

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 …

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

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 …

Negative reflection occurs when light is reflected toward the same side of the normal to the
boundary from which it is incident. This exotic optical phenomenon is not only yet to be …

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

Manipulation of the propagation and energy‐transport characteristics of subwavelength
infrared (IR) light fields is critical for the application of nanophotonic devices in …

Phonon polaritons (PhPs)─ lattice vibrations coupled to electromagnetic fields─ in highly
anisotropic media display a plethora of intriguing optical phenomena, including ray-like …