Hard X-ray attosecond metrology

T1Covered by 1 source · first reported by Nature / Science / Nature Biotechnology at 04 Nov, 00:00 UTC

Nature, Published online: 04 November 2026; doi:10.1038/s41586-026-11245-5 Metrology techniques are developed to characterize and control attosecond hard X-ray pulses, directly measuring a 170-attosecond duration and enabling ultrafast studies of electronic dynamics in quantum systems.