Space-time wave packets (STWPs) constitute a broad class of pulsed optical fields that are
rigidly transported in linear media without diffraction or dispersion, and are therefore …

The temporal characterization of ultrafast laser pulses has become a cornerstone capability
of ultrafast optics laboratories and is routine both for optimizing laser pulse duration and …

Controlling the group velocity of an optical pulse typically requires traversing a material or
structure whose dispersion is judiciously crafted. Alternatively, the group velocity can be …

Laser wakefield accelerators (LWFAs) produce extremely high gradients enabling compact
accelerators and radiation sources but face design limitations, such as dephasing, occurring …

We report on the development of an ultrafast beam shaper capable of generating Bessel
beams of high cone angle that maintain a high intensity hot spot with subwavelength …

Controlling the group velocity of an ultrashort laser pulse by means of spatio-temporal
couplings has been proposed to overcome the inherent limitations in laser–plasma …

A high-intensity laser pulse propagating through a medium triggers an ionization front that
can accelerate and frequency upshift the photons of a second pulse. The maximum upshift is …

The characterization of ultrashort laser pulses has significantly advanced beyond the
standard spatial and temporal diagnostics to now include sophisticated spatio-temporal …

The combination of temporal chirp with a simple chromatic aberration known as longitudinal
chromatism leads to extensive control over the velocity of laser intensity in the focal region of …

“Flying focus” techniques produce laser pulses with dynamic focal points that travel
distances much greater than a Rayleigh length. The implementation of these techniques in …