Abstract: | |
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. © 2017 IOP Publishing Ltd.
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License of this version: | CC BY 3.0 Unported - https://creativecommons.org/licenses/by/3.0/ |
Publication type: | Article |
Publishing status: | publishedVersion |
Publication date: | 2018 |
Keywords english: | frequency conversion, harmonic generation, including higher-order harmonic generation, optical parametric oscillators and amplifiers, optical pulse generation and pulse compression, ultrafast processes, Energy efficiency, Harmonic analysis, Harmonic generation, Infrared devices, Light amplifiers, Optical frequency conversion, Optical parametric oscillators, Optical pumping, Parametric oscillators, Probes, Pulse repetition rate, Pumping (laser), Carrier-envelope phase, Extreme ultraviolet radiations, High order harmonic generation, Including higher-order harmonic generations, Optical parametric chirped-pulse amplifiers, Optical parametric oscillators and amplifiers, Optical pulse generation, Ultrafast process, Optical parametric amplifiers |
DDC: | 530 | Physik |
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