Abstract The study of Bose–Einstein condensation effects in photonic systems has revealed
a rich phenomenology related to spontaneous coherence generation in driven-dissipative …

Polaritons are quasiparticles that form in semiconductors when an elementary excitation
such as an exciton or a phonon interacts sufficiently strongly with light. In particular, exciton …

Perovskite crystals—with their exceptional nonlinear optical properties, lasing and
waveguiding capabilities—offer a promising platform for integrated photonic circuitry within …

Topology describes properties that remain unaffected by smooth distortions. Its main
hallmark is the emergence of edge states localized at the boundary between regions …

Active optical elements with ever smaller footprint and lower energy consumption are central
to modern photonics. The drive for miniaturization, speed and efficiency, with the …

Ultrafast all-optical switches and integrated circuits call for giant optical nonlinearity to
minimize energy consumption and footprint. Exciton polaritons underpin intrinsic strong …

All-optical modulation yields the promise of high-speed information processing. In this field,
metasurfaces are rapidly gaining traction as ultrathin multifunctional platforms for light …

Today, almost all information processing is performed using electronic logic circuits
operating at several gigahertz frequency. All-optical logic holds the promise to allow for up to …

Exciton-polaritons in semiconductor microcavities have become a model system for the
studies of dynamical Bose–Einstein condensation, macroscopic coherence, many-body …

Graphene-based optical modulators have recently attracted much attention because of their
characteristic ultrafast and broadband response. Their modulation depth (MD) and overall …