Cord Arnold
Koordinator för Mötesplats Rydbergseminarier
Compact 200 kHz HHG source driven by a few-cycle OPCPA
Författare
Summary, in English
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.
Avdelning/ar
- Atomfysik
- Synkrotronljusfysik
Publiceringsår
2018-01-01
Språk
Engelska
Publikation/Tidskrift/Serie
Journal of Optics (United Kingdom)
Volym
20
Issue
1
Dokumenttyp
Artikel i tidskrift
Förlag
IOP Publishing
Ämne
- Atom and Molecular Physics and Optics
Nyckelord
- frequency conversion
- harmonic generation
- including higher-order harmonic generation
- optical parametric oscillators and amplifiers
- optical pulse generation and pulse compression
- ultrafast processes
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 2040-8978