Surface-enhanced Raman scattering (SERS) and tip-enhanced Raman scattering (TERS)
have opened a variety of exciting research fields. However, although a vast number of …

The integration of dissimilar materials into heterostructures has become a powerful tool for
engineering interfaces and electronic structure. The advent of 2D materials has provided …

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 …

Ultrathin dielectric gaps between metals can trap plasmonic optical modes with surprisingly
low loss and with volumes below 1 nm3. We review the origin and subtle properties of these …

As the first in a large family of 2D van der Waals (vdW) materials, graphene has attracted
enormous attention owing to its remarkable properties. The recent development of simple …

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 …

Graphene is an atomically thin plasmonic medium that supports highly confined plasmon
polaritons, or nano-light, with very low loss. Electronic properties of graphene can be …

Low-dimensional van der Waals (vdW) materials can harness tightly confined polaritonic
waves to deliver unique advantages for nanophotonic biosensing. The reduced …

Infrared spectroscopy provides unique information on the composition and dynamics of
biochemical systems by resolving the characteristic absorption fingerprints of their …