An Apparatus for Forming Three-Dimensional Structures by the Method of Two-Photon Femtosecond Polymerization with Simultaneous Spatiotemporal Focusing

An apparatus for 3D laser printing by the two-photon polymerization technique using a scheme for spatiotemporal focusing of femtosecond laser radiation is described. The system, which is based on available components) allows the formation of 3D centimeter-size structures with the micron resolution in all directions; this is its main advantage over other systems, including commercial ones. When creating the apparatus, a minimum number of optical and optomechanical components were used, thus significantly increasing the accessibility of such apparatuses in various laboratories. This apparatus can be used to manufacture 3D structures for various purposes, including scaffold structures for tissue-engineering tasks.