3 papers
physics.plasm-ph2025
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…
physics.optics2025
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…
physics.optics2024
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…