JuSPARC is a facility for Photon-based research at ultimate time scales.
JuSPARC comprises several short-pulse laser systems with peak powers in the TW-regime or repetition rates up to 10 MHz.
High harmonic generation
HHG is our standard tool to produce XUV and soft x-ray bunches. The extremely nonlinear interaction generates new frequencies at odd harmonics of the driving laser frequency.
Betatron radiation is a short-pulsed and bright source of X-ray, which is produced by oscillating electrons in the wakefield of a short laser pulse.
Nanometer-sized cluster targets can be used to inject electrons into plasma waves.
Experiments at PW lasers
Experiments at external laser facilities aim at the generation of spin-polarized proton and ion beams. This requires the use of nuclear polarized Hydrogen and Helium-3 target that are developed in Jülich.
JuSPARC at ResearchGate
The Short-Pulsed Particle and Radiation Center at the Forschungszentrum Jülich (JuSPARC) is an interdisciplinary center for collaborative research using ultra-short pulsed photon bunches and, in a later stage, particle beams. These are generated employing the radiation from high-power, short-pulse lasers with pulse durations in the 10 fs range, using nonlinear up-conversion schemes and novel target technologies.
JuSPARC is a part of the Jülich Multi-Method Platform which makes Jülich’s expertise in methodology available to scientists, and in particular to facilitate the appropriate combination of different methods for scientific analysis. The layout of JuSPARC is governed by the requirements of particular applications and we follow the principle that “the experiment defines the facility”.
JuSPARC is operated by the Peter Grünberg Institute ( PGI-6) and will be realized in stages: JuSPARC-1 is a user facility for the investigation of ultra-short dynamics in condensed-matter systems. It is based on two femtosecond lasers, the first built by Thales with a pulse energy of 40 mJ at a repetition rate of 1 kHz, the second from Amphos at 50 µJ and up to 10 MHz. With up-converted photon energies up to 200 eV, time-resolved studies of electronic states and spin-dependent processes are carried out in pump-probe experiments:
• Element selective magneto optics in the VUV range (T-MOKE)
• Combined magneto optics / electron spectroscopy in the SX range (PMOKE)
• Spin-resolved momentum microscopy (SPEMM)
In parallel to the operation of JuSPARC-1 we carry out experiments at external laser facilities of the multi-100-TW and PW class (e.g. Phelix in Darmstadt and SULF in Shanghai). They focus on the generation of polarized particle beams and electron/proton acceleration in the so-called bubble regime. These studies will also lay the foundations for the design of JuSPARC-2.
JuSPARC is part of the ATHENA consortium, the Helmholtz project for laser-plasma acceleration.