Infrared and optical spectroscopy represents one of the most informative methods in
advanced materials research. As an important branch of modern optical techniques that has …

Anisotropic materials with oppositely signed dielectric tensors support hyperbolic polaritons,
displaying enhanced electromagnetic localization and directional energy flow. However, the …

We employed infrared scattering-type scanning near-field optical microscopy (IR-sSNOM) to
study surface plasmon polaritons (SPPs) in trilayer graphene (TLG). Our study reveals …

Surface plasmons are collective oscillations of electrons that can enable confinement of
electromagnetic energy to subwavelength scales. Recent progress in plasmonics has …

Scanning near-field optical microscope (SNOM) with nanoscale spatial resolution has been
a powerful tool in studying the plasmonic properties of nano materials/structures. However …

Hexagonal boron nitride (hBN) supports two types of hyperbolic phonon polaritons (HPPs),
whose properties of strong electromagnetic field confinement and low propagation loss have …

Bimetallic plasmonic nanostructures provide composition and spatial distribution of the
individual components in the nanostructure in addition to overall size and morphology as …

Scattering-type near-field scanning optical microscopy (s-NSOM) has been beneficial for
observing various nano-optical phenomena by overcoming the spatial resolution diffraction …

Transition-metal dichalcogenide (TMD) monolayers possess large second-order nonlinear
susceptibility and have shown great potentials in on-chip nonlinear optical devices …

Graphene comes into the lime light as a new material opening next generation industries.
Especially in infrared optical region, surface plasmon polaritons (SPPs) arise on the surface …