Polaritons are hybrid excitations of matter and photons. In recent years, polaritons in van der
Waals nanomaterials—known as van der Waals polaritons—have shown great promise to …

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

Interactions between light and matter play an instrumental role in spectroscopy, sensing,
quantum information processing and lasers. In most of these applications, light is considered …

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 …

Mid-far infrared nonlinear optical (NLO) materials are gaining both scientific and
technological interest in wide applications. The practical properties of one crystal are …

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

Free electron beams such as those employed in electron microscopes have evolved into
powerful tools to investigate photonic nanostructures with an unrivaled combination of …

Correlation of lattice vibrational properties with local atomic configurations in materials is
essential for elucidating functionalities that involve phonon transport in solids. Recent …

Coherent optical excitations in two-dimensional (2D) materials, 2D polaritons, can generate
a plethora of optical phenomena that arise from the extraordinary dispersion relations that …

The breakdown of translational symmetry at heterointerfaces leads to the emergence of new
phonon modes localized at the interface. These modes have an essential role in thermal …