Compact 200 kHz HHG source driven by a few-cycle OPCPA

Anne Harth, Chen Guo, Yu Chen Cheng, Arthur Losquin, Miguel Miranda, Sara Mikaelsson, Christoph M. Heyl, Oliver Prochnow, Jan Ahrens, Uwe Morgner, Anne L'Huillier, Cord L. Arnold

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review


We present efficient high-order harmonic generation (HHG) based on a high-repetition rate, few-cycle, near infrared (NIR), carrier-envelope phase stable, optical parametric chirped pulse amplifier (OPCPA), emitting 6 fs pulses with 9 μJ pulse energy. In krypton, we reach conversion efficiencies from the NIR to the extreme ultraviolet (XUV) radiation pulse energy on the order of ∼10-6 with less than 3 μJ driving pulse energy. This is achieved by optimizing the OPCPA for a spatially and temporally clean pulse and by a specially designed high-pressure gas target. In the future, the high efficiency of the HHG source will be beneficial for high-repetition rate two-colour (NIR-XUV) pump-probe experiments, where the available pulse energy from the laser has to be distributed economically between pump and probe pulses.

TidskriftJournal of Optics (United Kingdom)
StatusPublished - 2018 jan. 1

Ämnesklassifikation (UKÄ)

  • Atom- och molekylfysik och optik


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