Abstract The groove density mismatching of compression gratings. an often-neglected key issue. can induce significant spatiotemporal aberrations especially for super-intense femtosecond lasers. We mainly investigate the angular chirp and the consequent degradation of the effective focused intensity introduced by the groove density mismatching of compression gratings in ultra-intense f... https://chefesquipmenters.shop/product-category/cleaning-cloths/