291 citations · 2k across the 41 of their papers we have counts for
41 papers
Electronic State Population Dynamics upon Ultrafast Strong Field Ionization and Fragmentation of Molecular Nitrogen
Carlo Kleine, Marc-Oliver Winghart, Zhuang-Yan Zhang +7
Air-lasing from single ionized N molecules induced by laser filamentation in air has been intensively investigated and the mechanisms responsible for lasing are currently hig…
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…
Linking High-Harmonic Generation and Strong-Field Ionization in Bulk Crystals
Peter Jürgens, Sylvianne D. C. Roscam Abbing, Mark Mero +5
The generation of high-order harmonics in bulk solids subjected to intense ultrashort laser pulses has opened up new avenues for research in extreme nonlinear optics and light-matt…
High-harmonic generation in a strongly overdriven regime
B. Major, K. Kovács, E. Svirplys +6
High-harmonic generation (HHG) normally requires a careful adjustment of the driving laser intensity (typically W/cm) and gas medium parameters to enable go…
Experimental control of quantum-mechanical entanglement in an attosecond pump-probe experiment
Lisa-Marie Koll, Laura Maikowski, Lorenz Drescher +2
Entanglement is one of the most intriguing aspects of quantum mechanics and lies at the heart of the ongoing Second Quantum Revolution, where it is a resource that is used in quant…
Generation and characterisation of isolated attosecond pulses at 100kHz repetition rate
Tobias Witting, Mikhail Osolodkov, Felix Schell +8
The generation of coherent light pulses in the extreme ultraviolet (XUV) spectral region with attosecond pulse durations constitutes the foundation of the field of attosecond scien…
Characterization of laser-induced ionization dynamics in solid dielectrics
Peter Jürgens, Benjamin Liewehr, Björn Kruse +8
The formation of an electron-hole plasma during the interaction of intense femtosecond laser pulses with transparent solids lies at the heart of femtosecond laser processing. Advan…
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…
Vibrational relaxation of hot ground state cations of naphthalene
Geert Reitsma, Serguei Patchkovskii, Judith Dura +4
Time-resolved XUV-IR photoion mass spectroscopy of naphthalene conducted with broadband, as well as with wavelength-selected narrowband XUV pulses reveals a rising probability of f…
Phase-Dependence of Resonant and Antiresonant Two-Photon Excitations
Lorenz Drescher, Tobias Witting, Oleg Kornilov +1
Measurements of the phase of two-photon matrix elements are presented for resonant and antiresonant two-color ionization of helium. A tunable, narrow-bandwidth, near-infrared (NIR)…
Compact intense extreme-ultraviolet source
Balázs Major, Omair Ghafur, Katalin Kovács +4
High-intensity laser pulses covering the ultraviolet to terahertz spectral regions are nowadays routinely generated in a large number of laboratories. In contrast, intense extreme-…
Time-resolving the UV-initiated photodissociation dynamics of OCS
Evangelos T. Karamatskos, Suresh Yarlagadda, Serguei Patchkovskii +4
We present a time-resolved study of the photodissociation dynamics of OCS after UV-photoexcitation at nm. OCS molecules () were primarily excited to the $1\,^1\!A…
Phase cycling of extreme ultraviolet pulse sequences generated in rare gases
Andreas Wituschek, Oleg Kornilov, Tobias Witting +4
The development of schemes for coherent nonlinear time-domain spectroscopy in the extreme-ultraviolet regime (XUV) has so far been impeded by experimental difficulties that arise a…
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…
XUV Spectral Compression by Four-Wave Mixing
L. Drescher, V. Shokeen, T. Witting +3
Extreme-ultraviolet (XUV) sources including high-harmonic generation, free-electron lasers, soft x-ray lasers and laser-driven plasmas are widely used for applications ranging from…
Attosecond Transient Absorption Spectroscopy without Inversion Symmetry
Lorenz Drescher, Marc J. J. Vrakking, Jochen Mikosch
Transient absorption is a very powerful observable in attosecond experiments on atoms, molecules and solids and is frequently used in experiments employing phase-locked few-cycle i…
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…
Generation and characterization of few-pulse attosecond pulse trains at 100kHz repetition rate
Mikhail Osolodkov, Federico J. Furch, Felix Schell +6
Many experiments in attosecond science will benefit from attosecond pulses at high repetition rates with sufficient photon flux for pump-probe experiments. We use 7fs, 800nm pulses…
Probing multiphoton light-induced molecular potentials
Matthias Kübel, Michael Spanner, Zack Dube +7
The strong coupling between intense laser fields and valence electrons in molecules causes a distortion of the potential energy hypersurfaces which determine the motion of nuclei i…
Origin of strong-field induced low-order harmonic generation in amorphous solids
P. Jürgens, B. Liewehr, B. Kruse +8
Kerr-type nonlinearities form the basis for our physical understanding of nonlinear optical phenomena in condensed matter, such as self-focusing, solitary waves, and wave mixing. I…
Multiple orbital effects in laser-induced electron diffraction of aligned molecules
Faruk Krečinić, Philipp Wopperer, Biagio Frusteri +6
Photoelectron Angular Distributions (PADs) resulting from 800 nm and 1300 nm strong field ionization of impulsively aligned CFI molecules were analyzed using time-dependent den…
Atomic-resolution imaging of carbonyl sulfide by laser-induced electron diffraction
Evangelos T. Karamatskos, Gildas Goldsztejn, Sebastian Raabe +9
Measurements on the strong-field ionization of carbonyl sulfide molecules by short, intense, 2~\um wavelength laser pulses are presented from experiments where angle-resolved photo…
Single-step fabrication of surface waveguides in fused silica with few-cycle laser pulses
Federico J. Furch, W. Dieter Engel, Tobias Witting +2
Direct laser writing of surface waveguides with ultrashort pulses is a crucial achievement towards all-laser manufacturing of photonic integrated circuits sensitive to their enviro…