Scientists show that irradiating a double-foil target with intense few-cycle laser pulses can produce single half-cycle 50 as pulses with peak electric fields as high as 1013 V m−1 and pulse energies of up to 0.1 mJ. The findings may stimulate new types of attosecond pump–probe experiments.
- H.-C. Wu
- J. Meyer-ter-Vehn