2025/09/10 by J. Björklund Svensson, Svensson, J. Björklund, J. Beinortaitė +33
#physics.acc-ph #physics.plasm-ph
paper · pdf · doi:10.48550/arxiv.2509.08420
Strong, symmetrically focusing plasma lenses are promising for accommodating the small beams associated with plasma-based accelerators and collider final foci. However, while focusing with active and passive plasma lenses has been experimentally demonstrated, compatibility with high-brightness beams relevant for applications has not. In this work, we show experimentally that passive plasma lenses can preserve free-electron-laser-quality slice emittance while focusing two orders of magnitude more strongly than quadrupole magnets, and that the focal parameters can be controlled.