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

Low symmetry 2D materials with intrinsic in-plane anisotropic optical properties and high
tunability provide a promising platform to explore and manipulate light–matter interactions …

Polaritons are well-established carriers of light, electrical signals, and even heat at the
nanoscale in the setting of on-chip devices. However, the goal of achieving practical …

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 …

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 …

Modulating anisotropic phonon polaritons (PhPs) can open new avenues in infrared
nanophotonics. Promising PhP dispersion engineering through polariton hybridization has …

Recent advancement in twisted layered metasurfaces can be employed to control the
nanoscale flow of light, including the exotic hyperbolic-to-elliptic topological transitions in …

Polaritons, hybrid light and matter waves, offer a platform for subwavelength on-chip light
manipulation. Recent works on planar refraction and focusing of polaritons all rely on …

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 …