In this post for our online science exhibition, Karol Kolataj from Tim Liedl’s group at LMU Munich presents two images that illustrates how it is possible to control color.
The Lycurgus cup in reflected (lit from the front, left side) and transmitted light (lit from behind, right) is shown in the top of this post. The cup is exhibited at the British Museum (Image source: https://www.britishmuseum.org)
The influence of ion on the synthesis of gold rods (left) and concave cubes (right) from small cold crystals (middle).