Plasmonic nanomaterial catalysis is currently at the frontier of photocatalysis, overcoming
the limitations of wide bandgap semiconductors for light absorption. Its localized surface …

Confinement of electromagnetic fields at the subwavelength scale via metamaterial
paradigms is an established method to engineer light–matter interaction in most common …

Near-field microscopy discloses a peculiar potential to explore novel quantum state of matter
at the nanoscale, providing an intriguing playground to investigate, locally, carrier dynamics …

Plasmon polaritons in topological insulators attract attention from a fundamental perspective
and for potential THz photonic applications. Although polaritons have been observed by THz …

Three-dimensional topological insulators (3D TIs), such as Bi 2 Se 3 and Bi 2 Te 3,
possessing insulating bulk states and nontrivial topological surface states protected by time …

Excitation of Dirac plasmon polaritons (DPPs) in bi‐dimensional materials have attracted
considerable interest in recent years, both from perspectives of understanding their physics …

Light can be strongly confined in subwavelength spatial regions through the interaction with
plasmons, the collective electronic modes appearing in metals and semiconductors. This …

We demonstrate via three examples that topological insulators (TI) offer a new platform for
plasmonics. First, we show that the collective excitations of a thin slab of a TI display spin …

Topological insulators (TIs) house two-dimensional Dirac plasmons on their surfaces. In TI
thin films, plasmons on the top and bottom surfaces couple electrostatically, giving rise to an …

We report terahertz time-domain spectroscopy experiments demonstrating strong light–
matter coupling in a terahertz LC metamaterial (MM) in which the phonon resonance of a …