Vector space-time wave packets

Space-time wave packets (STWPs) are propagation-invariant pulsed beams whose characteristics stem from the tight association between their spatial and temporal degrees of freedom. Until recently, only scalar STWPs have been synthesized in form light sheets. Here we synthesize vector that localized all dimensions by preparing polarization-structured spatiotemporal spectra unveil polarization distribution over STWP volume via time-resolved complex field measurements. Such endowed with cylindrically symmetric structures, which require joint manipulation spatial, temporal, freedom optical field. These results may be useful particle manipulation, nonlinear quantum optics.