
LLNL’s new diffraction gratings will enable the world’s most powerful laser
Lawrence Livermore National Laboratory (LLNL) researchers and their collaborators have developed new high-energy pulse compression gratings that will be used in the world’s highest-power laser system, designed to deliver up to 10 petawatts (quadrillion watts) of peak power. A petawatt is about...

Members of LLNL’s Diffractive Optics Group with four of the 85x70-centimeter HELD gratings to be installed in the ELI-Beamlines L4-ATON laser system. Meter-scale HELD gratings have the potential to facilitate future 20-to-50-petawatt-class ultrafast laser systems.