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9 papers
Terahertz emission from submicron solid targets irradiated by ultraintense femtosecond laser pulses
J. Déchard, X. Davoine, L. Gremillet +1
Using high-resolution, two-dimensional particle-in-cell simulations, we investigate numerically the mechanisms of terahertz (THz) emissions in submicron-thick carbon solid foils dr…
THz generation from relativistic plasmas driven by near- to far-infrared laser pulses
J. Déchard, X. Davoine, L. Bergé
Terahertz pulse generation by ultra-intense two-color laser fields ionizing gases with near- to far-infrared carrier wavelength is studied from particle-in-cell (PIC) simulations.…
Terahertz vortex wave generation in air plasma by two-color femtosecond laser pulses
Maksym Ivanov, Illia Thiele, Luc Bergé +3
We investigate the generation of broadband terahertz (THz) pulses with phase singularity from air plasmas created by fundamental and second harmonic laser pulses. We show that when…
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…
Broadband terahertz emission from two-color fs-laser-induced microplasmas
Illia Thiele, Pedro Gonzalez de Alaiza Martinez, Rachel Nuter +3
We investigate terahertz emission from two-color fs-laser-induced microplasmas. Under strongest focusing conditions, microplasmas are shown to act as point-sources for broadband te…
Picosecond laser filamentation in air
Andreas Schmitt-Sody, Heiko G. Kurz, L. Bergé +2
The propagation of intense picosecond laser pulses in air in the presence of strong nonlinear self-action effects and air ionization is investigated experimentally and numerically.…