Nanoscience is harnessing nanoscale phenomena seen in nature to create new techniques, materials, and products.
The butterfly scales and thin films contain no pigment.
The butterfly scales and thin films are made up of layers of super thin, transparent materials. The spacing between the layers causes only certain light waves to bounce back to our eyes as colors.
When you change the angle of the light, you change the color.
Developed for the NISE Network with funding from the National Science Foundation under Award Numbers 0532536 and 0940143. Any opinions, findings, and conclusions or recommendations expressed in this product are those of the authors and do not necessarily reflect the views of the Foundation.