https://doi.org/10.1140/epjd/e2015-50568-y
Regular Article
Carrier-envelope phase dependent high-order harmonic generation with a high-repetition rate OPCPA-system*
1 Department of Physics, Lund
University, P.O. Box
118, 22100
Lund,
Sweden
2 VENTEON Laser Technologies GmbH,
Hertzstrasse 1b, 30827
Garbsen,
Germany
3 Institut of Quantum Optics, Leibniz
Universität Hannover, Welfengarten
1, 30167
Hannover,
Germany
a
e-mail: piotr.rudawski@fysik.lth.se
Received:
30
July
2014
Received in final form:
16
December
2014
Published online:
12
March
2015
We study high-order harmonic generation with a high-repetition rate (200 kHz), few-cycle, driving laser, based on optical parametric chirped pulse amplification. The system delivers carrier-envelope phase stable, 8 fs, 10 μJ pulses at a central wavelength of 890 nm. High-order harmonics, generated in a high-pressure Ar gas jet, exhibit a strong CEP-dependence over a large spectral range owing to excellent stability of the driving laser pulses. This range can be divided into three spectral regions with distinct CEP influence. The observed spectral interference structures are explained by an analytical model based upon multiple pulse interferences.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2015