Government Documents and Currency Authentication

KolourOptik®: Nano-optic Display Technology for Government Document Authentication and Banknote Security

KolourOptik® is a patented technology providing government document and currency authentication. It combines sub-wavelength nanostructures and microstructures to create modern overt security features with a unique and customizable visual effect. KolourOptik pure plasmonic colour pixels patterned on ultra-thin microstructures create the thinnest full colour 3D movement security stripes and threads that are nearly impossible to replicate. KolourOptik originations are developed in a Class 100 cleanroom environment using the world’s most sophisticated electron beam lithography and proprietary nano-fabrication techniques to create the most uncompromising overt and covert banknote security and document authentication solutions in the market. At less than 10 microns thick, KolourOptik products seamlessly integrate into banknotes and other government documents without the need for specialized equipment or processes. KolourOptik was a finalist for the International Association of Currency Affairs (IACA) 2020 Excellence in Currency Technical Awards in the category of ‘Best New Currency Innovation’.

The META® KolourOptik display technology produces a unique combination of exceptional visual effects that result in uncompromising banknote security and limitless design flexibility. KolourOptik Advantages:

  • Full customization – motion, 3D depth, colour, design
  • Multi-colour palette – no holographic rainbowing
  • “Always on” – easy to authenticate, light condition agnostic
  • Movement – omni-directional movement and full parallax
  • 3D depth – three dimensional effects and floating effects
  • <5 micron – ultra-thin nano-scale form factor
  • Resolution – 127,000 dpi resolution; 6,350 ppi resolution
  • Mechanism – 50-350 nm structure and spacing sizes
  • Secure – combination of overt, covert and forensic features
  • Compatible – with most machine-readable features
  • Originations – dual 100kV e-beam lithography originations
  • IP protection – 32+ patents issued, 26+ patents pending

Learn About Our Nano-optic Technology Platform

Discover Our Government Documents & Banknote Products

Based on our KolourOptik® nano-optic display technology, our products for Banknote and Government Documents include foils, threads, and stripes that combine movement, 3D depth, and colour to deliver uncompromising security and currency authentication.

QUANTUM™ stripe


KolourDepth™ Security Foils & Stripes


LumaChrome™ Security Foils & Threads