2024/01/01 by Pascal Kiefer, Vincent Hahn, Sebastian Kalt +3 · 1 voice · 2 citations
Engineering · #Nonlinear Optical Materials Studies #Advanced Optical Imaging Technologies #Advanced optical system design
paper · pdf · doi:10.37188/lam.2024.003
openalex publication_date 2024/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
One of the challenges in the field of multi-photon 3D laser printing lies in further increasing the print speed in terms of voxels/s.Here, we present a setup based on a 7 7 focus array (rather than 3 3 in our previous work) and using a focus velocity of about 1 m/s (rather than 0.5 m/s in our previous work) at the diffraction limit (40/NA1.4microscope objective lens).Combined, this advance leads to a ten times increased print speed of about 10 8 voxels/s.We demonstrate polymer printing of a chiral metamaterial containing more than 1.7 10 12 voxels as well as millions of printed microparticles for potential pharmaceutical applications.The critical highquality micro-optical components of the setup, namely a diffractive optical element generating the 7 7 beamlets and a 7 7 lens array, are manufactured by using a commercial two-photon grayscale 3D laser printer.