The non-diffracting nature of the beam overcomes optical scattering effects that have previously hindered precise energy deposition, inducing extremely small, localized voids inside the wafer.

Menu of diffracting, nondiffracting, and quasi nondiffracting beams designed for transparent materials processing. (IMAGE) SPIE--International Society for Optics and Photonics ...

Wavefront shaping for generating non-diffracting optical beams can be achieved by various methods, ranging from annular slits 1, axicon lenses 26, computer generated holograms 24, spatial light ...