Femtosecond spectroscopy

The target of this laboratory is the generation and application of tunable EUV pulses, produced by high-order order harmonic generation (HHG) in noble gases. The temporal resolution provided by the beamline (from 10 to 20 fs, depending on the energy) allows us to study the electron-nuclear coupled dynamics in different types of molecules.


The driving source is a Ti:sapphire amplified laser system which generates 30 fs pulses with an energy of 6 mJ and repetition rate of 1 kHz. These pulses are compressed by using the hollow fiber technique in combination with ultrabroad band chirped mirrors down to 8 fs with an energy of 2.5 mJ.


Extreme ultraviolet (XUV) attosecond pulses are produced by focusing the high-energy few-optical cycle pulses in a gas cell filled with noble gases. The generated XUV radiation is filtered by a time-delay compensated monochromator.