6 papers
Plasma waveguides for high-intensity laser pulses
J. E. Shrock, B. Miao, E. Rockafellow +1
Fundamental to many applications of laser pulses in science and technology is an extended interaction length with matter that significantly exceeds the distance over which the puls…
Excitation of Giant Surface Waves During Laser Wake Field Acceleration
Travis Garrett, Christopher Pieronek, E. Rockafellow +7
We have detected the presence of very high intensity surface waves that are excited during plasma waveguided laser wakefield acceleration. Wakefield acceleration can be enchanced b…
Longitudinal shaping of plasma waveguides using diffractive axicons for laser wakefield acceleration
N. Tripathi, B. Miao, A. Sloss +4
New techniques for the optical generation of plasma waveguides -- optical fibres for ultra-intense light pulses -- have become vital to the advancement of multi-GeV laser wakefield…
Transverse orbital angular momentum: setting the record straight
N. Tripathi, S. W. Hancock, H. M. Milchberg
The nature of the transverse orbital angular momentum (tOAM) associated with spatiotemporal optical vortex (STOV) pulses has been the subject of recent debate. We demonstrate that…
Meter-scale supersonic gas jets for multi-GeV laser-plasma accelerators
B. Miao, J. E. Shrock, E. Rockafellow +2
Pushing the high energy frontier of laser wakefield electron acceleration (LWFA) to 10 GeV and beyond requires extending the propagation of relativistic intensity pulses to ~1 m in…
Transverse orbital angular momentum of amplitude-perturbed fields
S. W. Hancock, N. Tripathi, M. S. Le +2
We measure the change in transverse orbital angular momentum (tOAM) per photon, delta L_y, applied to an optical pulse by a pure amplitude perturbation. The results are in excellen…