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Optics-free focusing down to micrometer spot size and spectral filtering of XUV harmonics

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Academic year: 2021

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FIG. 1. Measured intensity profile (dots) and Gaussian fit (line) (a) and reconstructed spatial  phase  of  the  wavefront  (dots)  and  quadratic  fit  (line)  (b)  of  harmonics  H31  (blue),  H39  (orange) and H47 (yellow), using the SWORD technique for
FIG. 3.  Far-field  spatially-resolved  HHG  spectrum  measured  for  z jet  = -58 mm  with  (a)  and  without  (b)  the  pinhole  centered  on  the  XUV  path

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