Introduction
Sources of short-wavelength radiation, such as synchrotrons or free-electron lasers, have already enabled numerous applications and will facilitate more seminal studies. On the other hand, sources of coherent extreme ultraviolet to soft x-ray radiation via high-harmonic generation (HHG) of ultrashort-pulse lasers have gained significant attention in the last years due to their enormous potential to address a plethora of applications in a cost-effective and tabletop format. Therefore, they constitute a complementary source to large-scale facilities. The photon-flux values obtained by fiber-laser-driven HHG sources can be considered the highest of all laser systems for photon energies between 20 eV – 150 eV. Even higher photon energies up to the soft X-ray regime are feasible using Tm-based driving lasers.
AFS ultrafast fiber lasers are ideal high-harmonic drivers. These turnkey HHG beamlines can address several applications in the EUV to X-ray spectral region.
The following specs give an overview about our main capabilities. We happily customize a system exactly to your needs.
12eV … >150eV
100nm … <8.5nm
up to 1015 photons/s/harmonic (depending on harmonic)
up to 10mW (depending on harmonic)
flexible, up to 10MHz
shorter than pulse duration of input laser pulse (down to few fs)
can remain close to transform limit with flexible bandwidths (down to <10meV)
Gaussian
80cm × 40cm × 40cm
typically KF-40, can be adapted to customer preferences
turn-key reliability high stability, all parameters software-controlled
Possible Addons
Monochromatization:
Pick the harmonic you want. It can be adjustable to pick multiple different lines.
Dual-color driver:
Generate harmonics with multiple driving laser wavelengths (e.g. 1030nm & 515nm) at the same time or switch between both drivers during an experiment on the same optical path
Focusing:
Our radiation has an excellent beam quality and can be focussed as tightly as needed. Down to a few µm have been realized.
Differential pumping:
Target chambers often have strict requirements on the pressure. We can use the focusing section of the beamline to reduce the pressure down to <109mbar or less
Spectrometer:
It is always helpful to know the exact XUV spectrum during your experiments. Therefore, we offer integrated spectrometer modules enabling online spectral measurement simultaneous to your experiments.
Performance
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