We will present the first temporal characterisation of reproducible attosecond pulses generated by a Free Electron Laser.
We demonstrate a high peak- and average power OPCPA system producing 2.1-cycle pulses at 875 nm. Short pulse duration is achieved by using amplification stages with different nonlinear crystals and different noncollinearity and phase matching angles.
We demonstrate a highly efficient, single-stage, SRS-enabled cascaded frequency down-conversion to generate high-energy, few-cycle, IR pulses. 10 mJ, 220 fs pulses at 1030 nm are red-shifted to 1230 nm in a 5.5 m-long, nitrogen-filled waveguide with 82.5% efficiency, and subsequently compressed down to 19 fs.
We report on intense THz generation in two-color laser filaments driven by $3.9\ \mathrm{\mu m}$ pulses. The resulting extraordinary conversion efficiency of 2.34% is more than one order of magnitude higher as compared to conventional NIR drivers. The generated THz pulse energy of 0.185-mJ is sufficient for nonlinear perturbation of electro-optical crystals.
Here, we demonstrate a lab scale high-harmonic-generation source, installed and operating at the attosecond science & technology lab of FORTH-IESL delivering pulse energies of ~230 μJ and ~130 μJ in the ~50 nm spectral range from Xenon and Argon, respectively, in a quasi phase-matched dual gas-jet configuration. XUV pulses of this source have been used to observe multiple ionization of Argon...
We report on two recent demonstrations on attosecond broadband and 3D imaging.
We give a short overview on the available laser and secondary sources and on the Friday mini-workshop’s program of the conference hosted by ELI-ALPS Research Institute.