Today, we had the opportunity to learn about the work of the Center for Optical Research and Education at Utsunomiya University, Japan, through a seminar conducted by Professor Satoshi Hasegawa on laser processing of materials: «Holographic beam shaping for laser microfabrication»
Holographic beam shaping techniques using computer-generated holograms (CGH) displayed on spatial light modulators (SLMs) have been used to increase processing speed and improve beam accuracy and beam stability in some applications including laser microfabrication, fluorescence microscopy, optogenetics, and optical tweezers. In laser microfabrication, the speed is directly related to the manufacturing cost of the product. Accuracy is also related to product performance and yield. In this presentation, Prof. Hasegawa introduced some demonstrations of holographic beam shaping for laser microfabrication.