Isolated 64-attosecond pulses driven by a postcompressed Yb-laser

For the first time, an isolated attosecond pulse is directly generated from the Yb- laser. Intense post-compressed 3.5-fs pulses at 1030 nm were focused into a gas cell filled with neon, resulting in the generation of isolated 64-as pulses, which were characterized by attosecond streaking.