123 citations · 272 across the 9 of their papers we have counts for
9 papers
High-energy, few-cycle light pulses tunable across the vacuum ultraviolet
José R. C. Andrade, Martin Kretschmar, Rostyslav Danylo +8
In the last few decades the development of ultrafast lasers has revolutionized our ability to gain insight into light-matter interactions. The appearance of few-cycle light sources…
Compact realization of all-attosecond pump-probe spectroscopy
Martin Kretschmar, Evaldas Svirplys, Mikhail Volkov +4
The ability to perform attosecond-pump attosecond-probe spectroscopy (APAPS) is a longstanding goal in ultrafast science. While first pioneering experiments demonstrated the feasib…
Attosecond multi-photon multi-electron dynamics
M. Kretschmar, A. Hadjipittas, B. Major +6
Multi-electron dynamics in atoms and molecules very often occur on sub- to few-femtosecond timescales. The available intensities of extreme-ultraviolet (XUV) attosecond pulses have…
Intense narrowband XUV pulses from a compact setup
M. Kretschmar, M. J. J. Vrakking, B. Schütte
We report on a compact and spectrally intense extreme-ultraviolet (XUV) source, which is based on high-harmonic generation (HHG) driven by 395 nm pulses. In order to minimize the X…
Generation of above-TW 1.5-cycle visible pulses at 1 kHz by post-compression in a hollow fiber
Tamas Nagy, Martin Kretschmar, Marc J. J. Vrakking +1
We report on the generation of 6.1 mJ, 3.8 fs pulses by the compression of a kHz Ti:sapphire laser in a large-aperture long hollow fiber. In order to find optimal conditions for sp…
Propagation-assisted generation of intense few-femtosecond high-harmonic pulses
B. Major, M. Kretschmar, O. Ghafur +11
The ongoing development of intense high-harmonic generation (HHG) sources has recently enabled highly nonlinear ionization of atoms by the absorption of at least 10 extreme-ultravi…
Highly nonlinear ionization of atoms induced by intense high-harmonic pulses
Björn Senfftleben, Martin Kretschmar, Andreas Hoffmann +7
Intense extreme-ultraviolet (XUV) pulses enable the investigation of XUV-induced nonlinear processes and are a prerequisite for the development of attosecond pump - attosecond prob…
All-optical attoclock for imaging tunnelling wavepackets
I. Babushkin, A. J. Galan, J. R. C. Andrade +18
Recent experiments on measuring time-delays during tunnelling of cold atoms through an optically created potential barrier are reinvigorating the controversial debate regarding pos…
Compression of CEP-stable multi-mJ laser pulses down to 4 fs in long hollow fibers
Frederik Bohle, Martin Kretschmar, Aurelie Jullien +8
Carrier envelope phase stable 4 fs near-IR pulses with 3 mJ energy were generated by spectral broadening of circularly polarized 8 mJ pulses in a differentially pumped 2 m long com…