Color without
pigment.
Light, engineered into matter.
A titanium thin-film, tens of nanometers thick, deposited on a polished substrate. No dye. No ink. The color is the interference of light with itself.
A pigment absorbs light and returns what is left. A structure returns light it never absorbed at all — color held in geometry, not in chemistry.
What you see is film thickness, measured in nanometers, reading itself back to your eye.
Nacre does this in seashell. The morpho butterfly does this in chitin. We do it on demand, on steel, on glass, on polymer — tuned to a wavelength we choose.
Three ways to build a color out of structure.
The same principle at three scales of light.
- 01
Thin-film
A single layer, 80 to 300 nm. Interference between two reflections sets the hue. The oldest trick and the most controllable.
- 02
Photonic
Periodic stacks and lattices that forbid a band of wavelengths and reflect it cleanly. Saturated, angle-stable color.
- 03
Plasmonic
Sub-wavelength metal features that trap light as surface electron oscillations. Color from objects smaller than the color itself.