Papilio zalmoxis
Encyclopedia
Papilio zalmoxis or Giant Blue Swallowtail is an African butterfly.
Previously thought to produce a blue colour by Tyndall scattering
, the scales of Papilio zalmoxis are not nanostructured for incoherent scattering instead the blue is a fluorescent pigment
ary colour.
Previously thought to produce a blue colour by Tyndall scattering
Tyndall effect
The Tyndall effect, also known as Tyndall scattering, is light scattering by particles in a colloid or particles in a fine suspension. It is named after the 19th century physicist John Tyndall. It is similar to Rayleigh scattering, in that the intensity of the scattered light depends on the fourth...
, the scales of Papilio zalmoxis are not nanostructured for incoherent scattering instead the blue is a fluorescent pigment
Pigment
A pigment is a material that changes the color of reflected or transmitted light as the result of wavelength-selective absorption. This physical process differs from fluorescence, phosphorescence, and other forms of luminescence, in which a material emits light.Many materials selectively absorb...
ary colour.