All-optical attoclock for imaging tunnelling wavepackets

Dual-Color Laser Induced Terahertz Generation in Strong Field Approximation

“…From application aspect, it implies that the TWG is still obtainable through the CC transition even when the neutral atoms are fully depleted by the strong pump laser, showing the possibility to achieve intense THz fields by pumping gas-phase medium with extremely strong laser. Moreover, since the TWG is encoded by the timedependent information of the continuum electron, it can be used as a spatial-temporal probe in microscopic scale, complementary to HHG spectral lineshape and photoelectron momentum distributions, to trace ultrafast dynamics of continuum electron in atoms and molecules [12].…”