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 …

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

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

Anisotropy has been a key property employed in the design of optical components for
hundreds of years. However, in recent years there has been growing interest in polaritons …

Highly confined and in-plane anisotropic phonon-polaritons (PhPs) in orthorhombic-phase
molybdenum trioxide (α-MoO3) exist in three Reststrahlen bands (RB) in the mid-infrared …

Hyperbolic phonon polaritons (HPhPs) are stimulated by coupling infrared (IR) photons with
the polar lattice vibrations. Such HPhPs offer low‐loss, highly confined light propagation at …

Strong coupling (SC) between light and matter excitations bears intriguing potential for
manipulating material properties. Typically, SC has been achieved between mid-infrared …

The layered insulator hexagonal boron nitride (hBN) is a critical substrate that brings out the
exceptional intrinsic properties of two‐dimensional (2D) materials such as graphene and …

The hyperbolic phonon polaritons supported in hexagonal boron nitride (hBN) with long
scattering lifetimes are advantageous for applications such as super-resolution imaging via …