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Identifier

000434856

Title

Multiphoton processes induced by intense XUV attosecond pulse trains

Alternative Title

Πολυφωτονικές διεργασίες που προκαλούνται στην φασματική περιοχή του ακραίου υπεριώδους κενού από ισχυρούς παλμούς αττοδευτερολέπτων

Author

Μάκος, Ιωάννης Κ.

Thesis advisor

Χαραλαμπίδης, Δημήτριος
Τζάλλας, Παρασκευάς

Abstract

A high photon flux XUV attosecond source in the spectral region of 15- 25 eV was developed utilizing laser driven gas phase high harmonic generation under the implementation of IR loose focusing geometry. The obtained intensities, unique in this XUV spectral range, allowed the observation of multi-XUV-photon multiple ionization of noble gases through a series of sequential and direct paths. Furthermore, an attosecond delay line, based on a wavefront split device, capable of performing XUV pump - XUV probe experiments was built and tested via the 2nd order intensity volume autocorrelation; a technique for the temporal characterization of attosecond pulses. Finally, the perspective of inducing non-resonant strong field effects in the XUV domain utilizing the developed harmonic source is discussed.

Language

English

Subject

Extreme Ultraviolet

High order harmonic generation

Ultrafast phenomena

Αττοδευτερόλεπτα

Γέννηση υψηλών αρμονικών

Φασματική περιοχή ακραίου υπεριώδους κενού

Issue date

2020-12-14

Collection