Publications (9)
Low-Density Hydrodynamic Optical-Field-Ionized Plasma Channels Generated With An Axicon Lens
R. J. Shalloo, C. Arran, A. Picksley +9
We demonstrate optical guiding of high-intensity laser pulses in long, low density hydrodynamic optical-field-ionized (HOFI) plasma channels. An axicon lens is used to generate HOF…
Automation and control of laser wakefield accelerators using Bayesian optimisation
R. J. Shalloo, S. J. D. Dann, J. -N. Gruse +26
Laser wakefield accelerators promise to revolutionise many areas of accelerator science. However, one of the greatest challenges to their widespread adoption is the difficulty in c…
Reconstructing nonlinear plasma wakefields using a generalized temporally encoded spectral shifting analysis
C. Arran, N. H. Matlis, R. Walczak +1
We generalize the temporally encoded spectral shifting (TESS) analysis for measuring plasma wakefields using spectral interferometry to dissimilar probe pulses of arbitrary spectra…
Experimental evidence of production of directional muons from a laser-wakefield accelerator
L. Calvin, E. Gerstmayr, C. Arran +19
We report on experimental evidence of the generation of directional muons from a laser-wakefield accelerator driven by a PW-class laser. The muons were generated following the inte…
Meter-Scale, Conditioned Hydrodynamic Optical-Field-Ionized Plasma Channels
A. Picksley, A. Alejo, R. J. Shalloo +9
We demonstrate through experiments and numerical simulations that low-density, low-loss, meter-scale plasma channels can be generated by employing a conditioning laser pulse to ion…
A Bayesian Framework to Investigate Radiation Reaction in Strong Fields
E. E. Los, C. Arran, E. Gerstmayr +5
Recent experiments aiming to measure phenomena predicted by strong field quantum electrodynamics have done so by colliding relativistic electron beams and high-power lasers. In suc…
The inadequacy of a magnetohydrodynamic approach to the Biermann Battery
C. P. Ridgers, C. Arran, J. J. Bissell +1
Magnetic fields can be generated in plasmas by the Biermann battery when the electric field produced by the electron pressure gradient has a curl. The commonly employed magnetohydr…
Demonstration of The Brightest Nano-size Gamma Source
A. S. Pirozhkov, A. Sagisaka, K. Ogura +46
Gamma rays selectively interact with nuclei, induce and mediate nuclear reactions and elementary particle interactions, and exceed x-rays in penetrating power and thus are indispen…
Demonstration of tunability of HOFI waveguides via start-to-end simulations
S. M. Mewes, G. J. Boyle, A. Ferran Pousa +7
In recent years, hydrodynamic optical-field-ionized (HOFI) channels have emerged as a promising technique to create laser waveguides suitable for guiding tightly-focused laser puls…