We aim at providing a global perspective on electromagnetic nonreciprocity and clarifying
confusions that arose in recent developments of the field. We provide a general definition of …

Nonreciprocal electromagnetic devices play a crucial role in modern microwave and optical
technologies. Conventional methods for realizing such systems are incompatible with …

We introduce the concept of the inverse prism as the dual of the conventional prism and
deduce from this duality an implementation of it based on temporal discontinuity and spatial …

This paper presents space-time varying (STV) metasurfaces for simultaneously controlling
the spatial and temporal spectra of electromagnetic waves. These metasurfaces transform …

A hybrid graphene–insulator–metal (GIM) platform is proposed with a supported surface
plasmon polariton (SPP) wave that can be manipulated by breaking Lorentz reciprocity. The …

We predict the existence of confined transverse electric (TE) phonon polaritons in an
ultrathin hexagonal boron nitride (hBN) slab below hBN's second transverse optical …

Transverse electric graphene plasmons are generally weakly confined in the direction
perpendicular to the graphene plane. They are featured by a skin depth δ, namely the …

Recent advances in twisted photonic structures (eg, twisted bilayer graphene and twisted
anisotropic metasurfaces) have enabled many exotic phenomena of light-matter …

The room-temperature active modulation of plasmonic nanolasers is demonstrated on the
hybrid graphene–insulator–metal (GIM) platform. The threshold and lasing intensity of ZnO …