The pigments form a layer between 0 — 40
micrometres deep under the insect's cuticle, putting them in the perfect position to capture the Sun's light.
The final lens cut from these deposits was 40 micrometres (millionths of a metre) wide, 17.5 micrometres thick and 6.5
micrometres deep.
Unyong Jeong's team at Yonsei University in Seoul, South Korea, covered a flexible rubber film with a sheet of corrugated microporous polystyrene, with gutters around 3 micrometres wide and 1
micrometre deep.
Not exact matches
For now, such technology can cloak only objects with a surface area of a few square
micrometres and a few hundred nanometres
deep.