Nanostructured surfaces with designed optical functionalities, such as metasurfaces, allow
efficient harvesting of light at the nanoscale, enhancing light–matter interactions for a wide …

Phonon polaritons provide useful opportunities, complementary to those provided by
plasmon polaritons, in the study of the interaction of light with matter at small scales. The …

The lattice symmetry of a crystal is one of the most important factors in determining its
physical properties. Particularly, low-symmetry crystals offer powerful opportunities to control …

Surface phonon polaritons (SPhPs), the surface-bound electromagnetic modes of a polar
material resulting from the coupling of light with optic phonons, offer immense technological …

The ability to control the interaction of light and matter at the nanoscale is at the heart of the
field of nanophotonics. This subdiffractional confinement of light can be achieved through …

Surface phonon polaritons (SPhPs) have become a key ingredient for infrared
nanophotonics owing to their long lifetimes and the large number of polar dielectric crystals …

Surface phonon polaritons (SPhPs) and surface plasmon polaritons (SPPs), evanescent
modes supported by media with negative permittivity, are a fundamental building block of …

Surface waves such as plasmon, exciton, or phonon polaritons as well as guided modes
supported by various planar structures attract particular attention due to their capability of …

Before delving into the research results of this thesis, in this chapter we provide an overview
of the primary experimental and modelling approaches employed throughout it. Firstly, we …

Intrinsic absorption in a waveguiding material is often considered an undesirable effect that
severely limits wave propagation. However, with appropriate design of the cladding …