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 ...

KIKUCHIl first described examples of electron diffraction in which a crystal appeared to behave as a two-dimensional or cross-grating. Very thin sheets of mica give an equilateral net-like pattern ...

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

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.