| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Solid-state Optical Materials and Luminescence Properties
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| Presentation Title |
Progress Towards Layerless 3D Printed GRIN Lenses and Transparency-On-Demand Microbial Habitats |
| Author(s) |
Beck Walton, Dominique Porcincula, Martin De Beer, Rick Hynes, Erika Fong, Hazel Rose Galvan, Luke Myers, Alyssa Troksa, Jeffery Motschman, Drew Melchert, Peter Weber, Rebecca Dylla-Spears |
| On-Site Speaker (Planned) |
Beck Walton |
| Abstract Scope |
This work highlights two approaches to 3D printing silica glass. The first is volumetric additive manufacturing (VAM), wherein smooth compositional gradients, enabled by diffusion in the low viscosity ink, can be deposited prior to printing and then an arbitrary shape can be printed over that gradient. In this way, GRIN lenses can be printed which have large-scale and smooth compositional gradients. The second method employs a similar ink to VAM glass, but incorporates sacrificial fillers, both stochastic and architected. By submerging 3D printed lattice structures specific channels can be introduced to mimic natural structures such as roots, while random particle packing porosity can be controlled with either small sacrificial particles mixed with the glass particles or by degree of sintering. The resulting soil surrogate is unreactive with microbes and can also be infiltrated with an index matched fluid post-microbe growth to facilitate full confocal microscopy of the sample. |