https://www.edmundoptics.co.uk/f/midel-photonics-3d-top-hat-beam-shapers/40312/
Midel Photonics 3D Top-Hat Beam Shapers | Edmund Optics
Midel Photonics 3D Top-Hat Beam Shapers generate stable Flat-Top (Top-Hat) intensity profiles not only in the focal plane, but across an extended depth of...
top hatbeam shapersphotonicsedmundoptics