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Gold and Silver Dichroic Nanocomposite in the Quest for 3D Printing the Lycurgus Cup

submitted on 08.09.2019 and posted on 10.09.2019 by Lars Kool, Floris Dekker, Anton Bunschoten, Glen-Jacob Smales, Brian R. Pauw, Aldrik Velders, Vittorio Saggiomo
The Lycurgus cup is worldwide admired in particular because of its fascinating dichroic property. The cup presents a green colour when the observer and the light source are on the same side (reflection), and a deep red colour when the observer and the light source are at opposite sides (transmission). This peculiar effect, which has perplexed scientists for centuries, was discovered to be due to the presence of nanoparticles in the glass. In particular, to two different metallic nanoparticles: silver nanoparticles (AgNP) and gold nanoparticles (AuNP). Here we show how dichroic silver nanoparticles and gold nanoparticles can be embedded in a 3D printable material in order to reproduce the same dichroic effect of the original Lycurgus cup.


Email Address of Submitting Author


Wageningen University and Research



ORCID For Submitting Author


Declaration of Conflict of Interest

no conflict of interest


Read the published paper

in Beilstein Journal of Nanotechnology

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