ADLIS - Phase-controlled multi-color drive laser

01.04.2006 - 31.03.2011
Summary In the initial two phases of ADLIS, 5-fs intense drive sources, based on Ti:sapphire laser amplifiers, were developed and subsequently phase-stabilized to achieve reproducible generation of isolated 250-as XUV pulses. In phase 3, a driver laser system with groundbreaking capabilities will be developed to facilitate experiments that are currently inaccessible due to the fixed wavelength and the relatively low repetition rate (1-3kHz) of the existing Ti:Sapphire-based sources. The proposed multi-color system will comprise the most recent advances in ultrafast laser technology: the development of sub-picosecond mj-class. Yb-based pump lasers and progress in few-cycle optical parametric chirped-pulses amplification (OPCPA). The main objective of p19 is to provide enabling new-generation laser technology to match the demands for experimental infrastructure which have emerged over the lifetime of ADLIS. P19 aims at pushing the current technological limits of ultrashort pump lasers by realizing an unprecedented 200-W CPA subpricosecond Yb-based pump laser operating at a switchable repetition rate in the 10-100-kHz range. The optical harmonics of the pump laser will drive a chain of ultrabroadband parametric amplifiers that should provide continuous wavelength coverage in the 450-100-nm spectral range (signal wave) and 780-2100nm spectral range (idler wave), in the sub-6-fs pulses regime. Depending on the repetition rate and the type of parametric wave, the energy of few-cycle pulses will range from 30µJ to 1 mJ, which is suitable for XUV attosecond pulse generation in sub-70-eV photon engery range. Both passive and active carrier-envelope phase (CEP) control will be applied. The infrastructure development, envisaged in p19, is tightly linked to several ADLIS sub-projects and will enable the studios listed below. Applications relying on inversion-symmetry-free two-color drive fields: o Resonant and non-resonant HHG enhancement through two-color driving (in conjunction with the theory in P10, an isolated pulses use in p16 and p19) o Two-color manipulation of electron and ion trajectories (P16) o Generation of unidirectional half-circle pulses with a non-zero net momentum (P10) Applications drawing on the broadened spectral range: o Optically selective excitation/probing of molecular states in combination with XUV pulse spectroscopy (P16) o Femtosecond IR pump-robe spectroscopy of quantum well structures (P4) Applications benefiting from the increased pulses repetition rate: o Coincidence detection sequential double iobization and coinidence photoelectron-photoion (COLTRIMS) expieriments (P16) o Study of super Coster-Kronig decay in chromium






  • Fonds zur Förderung der wissenschaftlichen Forschung (FWF)


  • Quantum Physics and Quantum Technologies
  • Information and Communication Technology
  • Materials and Matter


XUV-Pulses spectroscopyXUV-Pulses spectroscopy
manipulation of electron,ion trajectoriesmanipulation of electron,ion trajectories