Unfolding the EUV and X-ray source parameters
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Gautier, J. et al, 2008 present in their paper a full optimization of the high harmonics wave front owing to the use of a soft X-ray Hartmann sensor.
Figure: The HHG wavefront copies the IR beam wavefront with astigmatism at 0° being the dominant aberration for both beams. This figure illustrates the close link between the IR laser wavefront and the resulting EUV beam wavefront. Gautier, J. et al, 2008.
– J. Gautier et al.Optimization of the wave front of high order harmonics. Eur. Phys. J. D, 2008, 48, 459–463
– O. de La Rochefoucauld et al, EUV and Hard X-ray Hartmann Wavefront Sensing for Optical Metrology, Alignment and Phase Imaging, Sensors 2021, 21(3), 874
– H. Dacasa et al, Single-shot extreme-ultraviolet wavefront measurements of high-order harmonics. Opt. Express 2019, 27, 2656–2670