Communications of the ACM
Optical-Grade Glass 3-D Printed at the Nanoscale
Said Jens Bauer, who now leads the Nanoarchitected Metamaterials Laboratory at Germany’s Karlsruhe Institute of Technology, “This work paves the way for on-chip manufacturing.”
Credit: Jens Bauer/UCI, KIT
Engineers at the University of California, Irvine (UCI) and Germany's Karlsruhe Institute of Technology have three-dimensionally (3D)-printed nanoscale optical-grade glass at low temperature using a new technique.
The researchers applied two-photon polymerization to a liquid resin surrounding polyhedral oligomeric silsesquioxane molecules impregnated with glass clusters.
Adding organic molecules yielded a crosslinked pre-glass polymeric nanostructure that was air-heated to 650 degrees Celsius (1,202 degrees Fahrenheit), producing a continuous glass nanostructure.
UCI's Cameron Crock said, "For pretty much any chip that can sustain 650 degrees Celsius, it will be possible to print high-quality, clear glass micro-, and nanostructures directly on the chip."
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