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physics.plasm-ph2024
X-ray free-electron lasing in a flying-focus undulator
D. Ramsey, B. Malaca, T. T. Simpson +5
Laser-driven free-electron lasers (LDFELs) replace magnetostatic undulators with the electromagnetic fields of a laser pulse. Because the undulator period is half the wavelength of…
physics.plasm-ph2023
Phase Control of Nonlinear Breit-Wheeler Pair Creation
B. Barbosa, J. P. Palastro, D. Ramsey +2
Electron-positron pair creation occurs throughout the universe in the environments of extreme astrophysical objects, such as pulsar magnetospheres and black hole accretion disks. T…