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 …

The development of highly efficient active integrated photonic circuits is crucial for
advancing information and computing science. Lead halide perovskite semiconductors, with …

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 that arise through the strong coupling of excitons and cavity photons are
used to demonstrate a wide array of fundamental phenomena and potential applications that …

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 …