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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…
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.…
Modelling arbitrarily shaped and tightly focused laser pulses in electromagnetic codes
Illia Thiele, Stefan Skupin, Rachel Nuter
Investigation of laser matter interaction with electromagnetic codes requires to implement sources for the electromagnetic fields. A way to do so is to prescribe the fields at the…
Spectral self-action of THz emission from ionizing two-color laser pulses in gases
Eduardo Cabrera-Granado, Yxing Chen, Ihar Babushkin +2
The spectrum of terahertz (THz) emission in gases via ionizing two-color femtosecond pulses is analyzed by means of a semi-analytic model and finite-difference-time-domain simulati…
Coulomb explosion of uniformly charged spheroids
M. Grech, R. Nuter, A. Mikaberidze +6
A simple, semi-analytical model is proposed for non-relativistic Coulomb explosion of a uniformly charged spheroid. This model allows us to derive the time-dependent particle energ…
High-quality ion beams from a nanometric double-layer target and their application to hadron-therapy
M. Grech, S. Skupin, R. Nuter +2
The production of ion beams from the interaction of a circularly polarized laser pulse with a nanometric double-layer target is discussed in the regime where all electrons are expe…