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

Sammanfattning

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.

Originalspråkengelska
Artikelnummer014007
TidskriftJournal of Optics (United Kingdom)
Volym20
Nummer1
DOI
StatusPublished - 2018 jan. 1

Ämnesklassifikation (UKÄ)

  • Atom- och molekylfysik och optik

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