Computational design of nanostructural color for additive manufacturing

Abstract
Additive manufacturing has recently seen drastic improvements in resolution, making it now possible to fabricate features at scales of hundreds or even dozens of nanometers, which previously required very expensive lithographic methods. As a result, additive manufacturing now seems poised for optical applications, including those relevant to computer graphics, such as material design, as well as display and imaging applications. In this work, we explore the use of additive manufacturing for generating structural colors, where the structures are designed using a fabrication-aware optimization process. This requires a combination of full-wave simulation, a feasible parameterization of the design space, and a tailored optimization procedure. Many of these components should be re-usable for the design of other optical structures at this scale. We showinitial results of material samples fabricated based on our designs. While these suffer from the prototype character of state-of-the-art fabrication hardware, we believe they clearly demonstrate the potential of additive nanofabrication for structural colors and other graphics applications.

Citation
Auzinger T, Heidrich W, Bickel B (2018) Computational design of nanostructural color for additive manufacturing. ACM Transactions on Graphics 37: 1–16. Available: http://dx.doi.org/10.1145/3197517.3201376.

Acknowledgements
We would like to thank Zechen Zhang, Steve Marschner, and Qiang Fu for insightful discussions. For help with nanofabrication aspects, we want to thank Zhihong Wang, Xiong Dun, Andrea Bertoncini, and - especially - Arnold Priebe. We also want to thank the anonymous referees for their valuable suggestions. Thomas Auzinger and Bernd Bickel are supported by the European Research Council Starting Grants under Grant No.: 715767 (https: //cordis.europa.eu/project/rcn/206323-en.html). This work was in part supported by King Abdullah University of Science and Technology Baseline Funding. The fabrication of the nanostructures was performed in the KAUST Nanofabrication Core Lab.

Publisher
Association for Computing Machinery (ACM)

Journal
ACM Transactions on Graphics

DOI
10.1145/3197517.3201376

Additional Links
https://dl.acm.org/citation.cfm?doid=3197517.3201376

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