215 citations · 694 across the 19 of their papers we have counts for
19 papers
Ultrafast Polarization-Tunable Monochromatic Extreme Ultraviolet Source at High-Repetition-Rate
Antoine Comby, Debobrata Rajak, Dominique Descamps +5
We report on the development of a high-order harmonic generation (HHG)-based ultrafast high-repetition-rate (250 kHz) monochromatic extreme ultraviolet (21.6 eV) source with polari…
Role of Spin-Orbit Coupling in High-order Harmonic Generation Revealed by Super-Cycle Rydberg Trajectories
Nicola Mayer, Samuel Beaulieu, Alvaro Jimenez-Galan +7
High-harmonic generation is typically thought of as a sub-laser-cycle process, with the electron's excursion in the continuum lasting a fraction of the optical cycle. However, it w…
Bright, polarization-tunable high repetition rate extreme ultraviolet beamline for coincidence electron-ion imaging
Antoine Comby, Etienne Bloch, Sandra Beauvarlet +9
After decades of supremacy of the Titanium:Sapphire technology, Ytterbium-based high-order harmonic sources are emerging as an interesting alternative for experiments requiring hig…
Photoionization of chiral molecules by counter-rotating bicircular laser fields: a chiral attoclock
Samuel Beaulieu, Sylvain Larroque, Antoine Comby +6
Measuring and controlling the ionization dynamics by intense laser fields has recently led to important breakthroughs, from the investigation of tunneling time delays to attosecond…
High-order parametric generation of coherent XUV radiation
O. Hort, A. Dubrouil, M. A. Khokhlova +6
We observe a new regime of coherent XUV radiation generation in noble gases induced by femtosecond pulses at very high intensities. This XUV emission has both a reduced divergence…
Attosecond-resolved photoionization of chiral molecules
Samuel Beaulieu, Antoine Comby, Alex Clergerie +13
Chiral light-matter interactions have been investigated for two centuries, leading to the discovery of many chiroptical processes used for discrimination of enantiomers. Whereas mo…
Optics-free focusing down to micrometer spot size and spectral filtering of XUV harmonics
K. Veyrinas, C. Valentin, D. Descamps +5
Controlling the wavefront of an extreme ultraviolet (XUV) high-order harmonic beam during the generation process offers to focus the beam without resorting to any XUV optics. By ch…
Controlling Sub-Cycle Optical Chirality in the Photoionization of Chiral Molecules
Shaked Rozen, Antoine Comby, Etienne Bloch +8
Controlling the polarization state of electromagnetic radiation enables the investigation of fundamental symmetry properties of matter through chiroptical processes. Many strategie…
High-harmonics of harmonics of a fiber laser: a milliwatt XUV ultrashort source
Antoine Comby, Dominique Descamps, Aura Gonzalez +4
Recent progresses in femtosecond ytterbium-doped fiber laser technology areopening new perspectives in strong field physics and attosecond science. Highorder harmonic generation fr…
Multiphoton Photoelectron Circular Dichroism of Limonene with Independent Polarization State Control of the Bound-Bound and Bound-Continuum Transitions
Samuel Beaulieu, Antoine Comby, Dominique Descamps +5
Photoionization of randomly oriented chiral molecules with circularly polarized light leads to a strong forward/backward asymmetry in the photoelectron angular distribution. This c…
Phase-Resolved Two-Dimensional Spectroscopy of Electronic Wavepackets by Laser-Induced XUV Free Induction Decay
Samuel Beaulieu, Etienne Bloch, Lou Barreau +6
We present a novel time- and phase-resolved, background-free scheme to study the extreme ultraviolet dipole emission of a bound electronic wavepacket, without the use of any extrem…
Photoexcitation Circular Dichroism in Chiral Molecules
S. Beaulieu, A. Comby, D. Descamps +13
Chirality is ubiquitous in nature and fundamental in science, from particle physics to metamaterials.The most established technique of chiral discrimination - photoabsorption circu…
Relaxation Dynamics in Photoexcited Chiral Molecules Studied by Time-Resolved Photoelectron Circular Dichroism: Toward Chiral Femtochemistry
Antoine Comby, Samuel Beaulieu, Martial Boggio-Pasqua +8
Unravelling the main initial dynamics responsible for chiral recognition is a key stepin the understanding of many biological processes. However this challenging task requires a se…
Role of Excited States In High-order Harmonic Generation
Samuel Beaulieu, Seth Camp, Dominique Descamps +8
We investigate the role of excited states in High-order Harmonic Generation by studying the spectral, spatial and temporal characteristics of the radiation produced near the ioniza…
Post-compression of high energy terawatt-level femtosecond pulses and application to high order harmonic generation
Ondřej Hort, Antoine Dubrouil, Amélie Cabasse +4
We perform a post-compression of high energy pulses by using optical-field ionization of low pressure helium gas in a guided geometry. We apply this approach to a TW chirped-pulse-…
Multi-channel Electronic and Vibrational Dynamics in Polyatomic High-order Harmonic Generation
A. Ferré, A. E. Boguslavskiy, M. Dagan +19
High-order harmonic generation in polyatomic molecules generally involves multiple channels, each associated with a different orbital. Their unambiguous assignment remains a major…
Near infrared few-cycle pulses for high harmonic generation
Steffen Driever, Konstantin B. Holzner, Jean-Christophe Delagnes +7
We report on the development of tunable few-cycle pulses with central wavelengths from 1.6 um to 2 um. Theses pulses were used as a proof of principle for high harmonic generation…
Transient grating spectroscopy of SF6 molecular vibrations
Amélie Ferré, David Staedter, Frédéric Burgy +7
Strong field transient grating spectroscopy has shown to be a very versatile tool in time-resolved molecular spectroscopy. Here we use this technique to investigate the high-order…
High-harmonic transient grating spectroscopy of NO2 electronic relaxation
H. Ruf, C. Handschin, A. Ferré +18
We study theoretically and experimentally the electronic relaxation of NO2 molecules excited by absorption of one ~400 nm pump photon. Semi-classical simulations based on trajector…