Ultra-intense, ultrashort, strong-field laser breaks 10-petawatt limit

https://phys.org/news/2024-01-petawatt-limit-laser-amplification.html

"Titanium:sapphire crystal: energy-level-type broadband laser gain medium... pump pulse absorbed to build up population inversion between upper and lower energy levels, completing energy storage... coherently tiling multiple titanium:sapphire crystal amplification in 0.1-petawatt laser... high conversion efficiencies, stable energies, broadband spectra, short pulses, and small focal spots... laser-driven radiation sources, laser particle acceleration, vacuum quantum electrodynamics"