2 papers
physics.acc-ph2025
High brightness, symmetric electron bunch generation in a plasma wakefield accelerator via a radially-polarized plasma photocathode
James Chappell, Emily Archer, Roman Walczak +1
The plasma photocathode has previously been proposed as a source of ultra-high-brightness electron bunches within plasma accelerators. Here, the scheme is extended by using a radia…
physics.optics2025
On the localization of the high-intensity region of simultaneous space-time foci
Emily Archer, Bangshan Sun, Roman Walczak +2
Simultaneous space-time focusing (SSTF) is sometimes claimed to reduce the longitudinal extent of the high-intensity region near the focus, in contradiction to the original work on…