XUV IR pump probe experiments


XUV / IR – Pulse Delay Unit


Our pulse delay unit K2 is a handy tool to design your pump-probe experimental setup. It uses our XUV/soft X-ray multilayer double mirrors and the coating can be customized for the specific center energy and bandwidth needed.

The two-segment mirror focuses IR pulses and lower divergent XUV/soft X-ray pulses onto a common focus with a precisely adjustable time delay. This enables time resolved experiments either with the XUV/soft X-ray pulse pumping the system and the IR pulse probing it, or vice versa. With attosecond pulses generated in the XUV/soft X-ray range by High-Harmonic Generation (HHG), K2 offers the highest temporal resolution for your experiments.

Key Product Features

  • Temporal resolution: 3 as
  • Scan range: 300 fs
  • Adjustment with 5 degrees of freedom
  • Customized energy range and bandwidth
  • Vacuum compatibility: < 10-6 mbar (UHV on request)
  • Travel range actuator: ≈100 μm (software limits the range from 0-95 μm)
  • Resolution actuator: 2 nm
  • Travel range: 25 mm
  • Step size: <  30 nm


[1] Atomic transient recorder
R. Kienberger, E. Goulielmakis, M. Uiberacker, A. Baltuska, V. Yakovlev, F. Bammer, A. Scrinzi, Th. Westerwalbesloh, U. Kleineberg, U. Heinzmann, M. Drescher, and F. Krausz
Nature 427, 817 (2004)

[2] SingleCycle Nonlinear Optics
E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, U. Kleineberg
Science 320, 1614 (2008)