Femtosecond laser filamentation is a unique nonlinear optical phenomenon when high-
power ultrafast laser propagation in all transparent optical media. During filamentation in the …

Propagation-invariant or nondiffracting optical beams have received considerable attention
during the last two decades. However, the pulsed nature of light waves and the structured …

Exciton-polaritons are hybrid light-matter states that arise from strong coupling between an
exciton resonance and a photonic cavity mode. As bosonic excitations, they can undergo a …

We provide a complete analysis, from theory to experiment, of the spontaneous emergence
of a discretized conical wave of X-type (ie, a localized 2D+ 1 space-time wavepacket) when …

Ultrafast nonlinear photonics enables a host of applications in advanced on-chip
spectroscopy and information processing. These rely on a strong intensity dependent …

Half‐light and half‐matter exciton polaritons have demonstrated profound impacts on
coherent quantum phenomena. Two‐dimensional (2D) organic− inorganic perovskite …

Exciton-polaritons are hybrid light-matter excitations arising from the nonperturbative
coupling of a photonic mode and an excitonic resonance. Behaving as interacting photons …

Microcavity polaritons are strongly interacting hybrid light–matter quasiparticles, which are
promising for the development of novel light sources and active photonic devices. Here, we …

We experimentally demonstrate the difference between a ridge polariton laser and a
conventional edge-emitting ridge laser operating under electron-hole population inversion …

Guided 2D exciton–polaritons, resulting from the strong coupling of excitons in
semiconductors with nonradiating waveguide modes, provide an attractive approach toward …