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7 papers
Bright Coherent Ultrahigh Harmonics in the keV X-Ray Regime from Mid-Infrared Femtosecond Lasers
Tenio Popmintchev, Ming-Chang Chen, Dimitar Popmintchev +17
High harmonic generation traditionally combines ~100 near-infrared laser photons, to generate bright, phase matched, extreme ultraviolet beams when the emission from many atoms add…
High-harmonic generation in liquids with few-cycle pulses: effect of laser-pulse duration on the cut-off energy
Angana Mondal, Benedikt Waser, Tadas Balciunas +5
High-harmonic generation (HHG) in liquids is opening new opportunities for attosecond light sources and attosecond time-resolved studies of dynamics in the liquid phase. In gas-pha…
Temperature Measurements of Liquid Flat Jets in Vacuum
Yi-Ping Chang, Zhong Yin, Tadas Balciunas +2
Sub-μm thin samples are essential for spectroscopic purposes. The development of flat micro-jets enabled novel spectroscopic and scattering methods for investigating molecular syst…
Time-resolving magnetic scattering on rare-earth ferrimagnets with a bright soft-X-ray high-harmonic source
G. Fan, K. Legare, V. Cardin +16
We demonstrate the first time-resolved X-ray resonant magnetic scattering (tr-XRMS) experiment at the N edge of Tb at 155 eV performed using a tabletop high-brightness high-harmoni…
Bismuth Ferrite Dielectric Nanoparticles Excited at Telecom Wavelengths as Multicolor Sources by Second, Third, and Fourth Harmonic Generation
Jeremy Riporto, Alexis Demierre, Cédric Schmidt +9
We demonstrate the simultaneous generation of second, third, and fourth harmonic from a single dielectric Bismuth Ferrite nanoparticle excited by a telecom fiber laser at 1560 nm.…
CEP-stable Tunable THz-Emission Originating from Laser-Waveform-Controlled Sub-Cycle Plasma-Electron Bursts
T. Balčiūnas, D. Lorenc, M. Ivanov +9
We study THz-emission from a plasma driven by an incommensurate-frequency two-colour laser field. A semi-classical transient electron current model is derived from a fully quantum-…
Optimisation of Quantum Trajectories Driven by Strong-field Waveforms
S. Haessler, T. Balčiūnas, G. Fan +9
Quasi-free field-driven electron trajectories are a key element of strong-field dynamics. Upon recollision with the parent ion, the energy transferred from the field to the electro…