High-Harmonic generation (HHG) source at 10 kHz with a vacuum beam-line for ultrafast liquid jet experiments
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EPFL SB ISIC LSU CH H1 564 1015 Lausanne | Christopher Arrell Tel +41216930452 | |
Setup / Configuration | ||
This set-up uses a Cryo-amplifier (Wyvern, KMLabs) to generate 50 fs 1.5 mJ pulses at 10 kHz. Part of the output of the laser is compressed in a rare gas-filled hollow fiber compressor to give a pulse of <10 fs, 0.5 mJ. The compressed pulses are used to generate high-harmonics, in the 30-100 eV region, measured using an XUV flat-field spectrometer. For the experiments single harmonics are selected using a time-preserving monochromator (sub-eV resolution, under development). The vacuum beam-line includes an interaction chamber with a liquid microjet and time of flight electron spectrometer, for time resolved photo-electron spectroscopy of liquid solutions. The set-up is easily adapted for surface or solid-state photoemission studies. | Figure: Neon-filled Hollow fiber lighting up when pumped with 0.8 mJ, 50 fs pulses at 10 kHz repetition rate (8W average power) | |