Laser-based 3D printing: A powerful tool to advance optical microscopy

https://phys.org/news/2024-06-laser-based-3d-powerful-tool.html

"multi-photon lithography enables 3D structure maskless micro- and nanoscale production... since nonlinear precision enhanced by locally refining laser intensity, advanced hatching and slicing... fabricated in 8 minutes: 20 µm diameter micro-sphere with almost perfect geometric quality (λ/8), exceptional surface smoothness... printed on coverslip witha hole in center, enabling flexible manipulation, optical microscope integration... surpassed conventional resolution limits while preserving high axial resolution"