Dr. Cord Arnold, Atomfysik, LTH

The talk will give an overview about my activities in the development of ultrafast laser technology, attosecond sources, and accompanying diagnostics at the Lund High Power Laser Facility. The facility hosts three, state-of-the-art, ultrafast laser systems, all of which are used for attosecond science. The available laser parameters range from very energetic pulses at 10 Hz to carrier envelope phase stable, few-cycle (<7 fs) pulses at very high repetition rate (>200 kHz).

We produce attosecond pulses in the XUV spectral range, which are the principal enabling tools to study fundamental processes with attosecond temporal resolution, via the strongly nonlinear process of high-order harmonic generation. The attosecond sources driven by the three laser systems will be discussed and applications in atomic and solid state systems will be highlighted.

The high repetition rate source, which is currently built, is based on a novel optical parametric chirped pulse amplifier (OPCPA), which we recently developed with VENTEON laser technologies. This source is dedicated to experiments that strongly benefit from high repetition rate, such as coincidence detection schemes and time-resolved electron microscopy.