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 …

The discovery of ultraconfined polaritons with extreme anisotropy in a number of van der
Waals (vdW) materials has unlocked new prospects for nanophotonic and optoelectronic …

Hyperbolic metamaterial (HMM) is a unique type of anisotropic material that can exhibit
metal and dielectric properties at the same time. This unique characteristic results in it …

Exploring nanoscale material properties through light-matter interactions is essential to
unveil new phenomena and manipulate materials at the atomic level, paving the way for …

Polariton canalization is characterized by intrinsic collimation of energy flow along a single
crystalline axis. This optical phenomenon has been experimentally demonstrated at the …

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 …

In-plane anisotropic van der Waals materials have emerged as a natural platform for
anisotropic polaritons. Extreme anisotropic polaritons with in-situ broadband tunability are of …

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 …

The vast repository of van der Waals (vdW) materials supporting polaritons offers numerous
possibilities to tailor electromagnetic waves at the nanoscale. The development of …

Fiber‐based photochromic wearables have attracted growing attention in sustainable photo‐
patterning information displays, information security encryption, and optical data …