Abstract
In this work we present a method for generating ultra-intense Laguerre–Gauss laser beams, using 3D direct laser writing of spiral phase plasma mirrors. These single-use mirrors provide an economical and scalable solution for arbitrary spatial beam shaping at ultra-high laser intensities. The use of these plasma-based optical devices is demonstrated for the case of an orbital angular momentum of , with incident laser intensity of 1017 W cm−2. We conclude by discussing practical considerations for using these optical elements on petawatt-class laser systems
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