Pressure-activated photonic crystals provide anticounterfeit capability

Aug. 1, 2009
Engineers at Opalux (Toronto, ON, Canada) have developed a technology platform that exploits the properties of electrically, mechanically, or optically stimulated photonic crystals to create materials used in a variety of illumination, signage, anticounterfeiting, and other applications.

Engineers at Opalux (Toronto, ON, Canada) have developed a technology platform that exploits the properties of electrically, mechanically, or optically stimulated photonic crystals to create materials used in a variety of illumination, signage, anticounterfeiting, and other applications.

One of the company’s main product lines, Elast-Ink, combines photonic-crystal materials with synthetic rubbers. When stretched, squeezed, or twisted, the shape changes induce physical changes to the crystalline structure and periodicity of the embedded photonic-crystal materials, producing external color changes that are impossible to forge. For example, a patch of red Elast-Ink material could be coated onto a product package, banknote, or other secure document. By simply squeezing this patch between one’s fingers or scratching a fingernail across it, the end user would cause the patch to change color, or even to display data or graphics, providing a proof of authenticity. Contact Andre Arsenault at [email protected].

Sponsored Recommendations

Flexible, Thixotropic, One Component Dual Cure Epoxy

Dec. 1, 2023
Master Bond UV23FLDC-80TK is a moderate viscosity, cationic type system that offers both UV light and heat curing mechanisms. It cures readily within 20-30 seconds when exposed...

MRF Polishing

Dec. 1, 2023
Welcome to Avantier, your esteemed partner in optical solutions for over five decades. With a legacy of expert knowledge, we invite you to delve into the realm of precision optics...

Fluorescence Microscopy Part 1: Illuminating Samples for High-Resolution Imaging

Dec. 1, 2023
Illuminating Samples Fluorescence microscopy is a powerful imaging technique widely used in various fields, especially in biomedical research, to visualize and study fluorescently...

Photonics Business Moves: December 1, 2023

Dec. 1, 2023
Here are the top four photonics business moves that made headlines during the week ending December 1, 2023.

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!