3D printing of silica glass through a multiphoton polymerization process

We introduce a laser-based process relying on multiphoton-induced polymerization to produce complex three-dimensional (3D) glass parts. A focused, intense laser beam is used polymerize transparent resin, loaded with additives and silica nanoparticles, at the wavelength of through nonlinear absorption processes. The object created directly in volume, overcoming limitation layer-by-layer process. enables production parts consecutive debinding sintering With bulk density resolution that depends spot size, 3D objects centimetric dimensions are obtained.