High-order harmonic generation at high laser intensities beyond the tunnel regime

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We present studies of high-order harmonic generation (HHG) at laser intensities well above saturation. We use driving laser pulses which present a particular electron dynamics in the turn-on stage. Our results predict an increasing on the harmonic yield, after an initial dropping, when the laser intensity is increased. This fact contradicts the general belief of a progressive degradation of the harmonic emission at ultrahigh intensities. We have identified a particular set of trajectories which emerges in the turn-on stage of these singular laser pulses, responsible of the unexpected growth on the harmonic efficiency at this high intensity regime. Our study combines two complementary approaches: classical analysis and full quantum mechanical calculations resulting from the numerical integration of the 3-dimensional time-dependent Schrodinger equation complemented with the time-frequency analysis.
Original languageEnglish
Article number195
JournalEuropean Physical Journal D
Issue number7
Publication statusPublished - 24 Jul 2014


Dive into the research topics of 'High-order harmonic generation at high laser intensities beyond the tunnel regime'. Together they form a unique fingerprint.

Cite this