New anti-fake material from butterfly wings

Inspired by the color change on the wings of the Pierella luna butterfly, American scientists have created a special material that varies in color from perspective.

>>> Production of "utopian" materials capable of absorbing super water
>>> New bulletproof material like fish scales?

Butterfly Pierella luna can change the color of the wings thanks to the special scale structure. (Photo: Mathias Kolle / Harvard)

Researchers at Harvard University have developed a diffraction grating that separates white light into individual colors (depending on wavelength) and disperses them in different directions. Therefore, when looking at different angles, the new material will have different colors.

According to Mathias Kolle, a co-author of the study, the new material could be used to paste important documents or paper money into place (replacing the current holographic technology). Criminals are very difficult to fake.

In addition, because of the ability to separate light into different wavelengths, it could potentially have the potential to increase the efficiency of solar panels and LEDs.

The title has been changed.