@article{WeberWerdehausenKoenigetal.2020,
  author    = {Ksenia Weber and Daniel Werdehausen and Peter K{\"o}nig and Simon Thiele and Michael Schmid and Manuel Decker and Peter William de Oliveira and Alois Herkommer and Harald Giessen},
  title     = {Tailored nanocomposites for 3D printed micro-optics},
  series   = {Optical Materials Express},
  volume    = {10},
  number    = {10},
  doi       = {10.1364/ome.399392},
  url       = {https://nbn-resolving.org/urn:nbn:de:bsz:291:415-1793},
  pages     = {2345 -- 2355},
  year      = {2020},
  abstract  = {Optical polymers cover only a rather narrow range of optical properties. This is a limiting factor for the design of polymer-based optical systems such as smartphone cameras. Moreover, it also poses a problem for femtosecond two-photon lithography, which is a state-of-the-art technology to 3D print high-quality optics from photopolymers. To overcome the limitations of conventional polymers, we introduce nano-inks based on the commonly used photopolymers IP-DIP and IP-S as polymer matrix and zirconium dioxide (ZrO2) nanoparticles. We show that the refractive index and dispersion of these nano-inks can be purposefully tailored by varying the constituent materials and the volume fraction of the nanoparticles. Furthermore, we demonstrate the suitability of our nano-inks for optical applications by 3D printing single micro-lenses and a multi-material achromatic Fraunhofer doublet. Our findings confirm that nanocomposites expand the range of optical properties that are accessible for polymer-based systems and allow for the design of tailored optical materials.},
  language  = {en}
}