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. 2022 May 4;12:7287. doi: 10.1038/s41598-022-10797-6

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Top view of the experimental setup including a cylindrical cryogenic hydrogen jet target (black circle), pump laser (red beam), off-harmonic optical probe laser (green beam) as backlighter, imaging beamline with microscope objective (numerical aperture 0.28, working distance $80 mm$ ) and spectral filters, spectrometer and CMOS-camera for detection.