A Switchable Optically Variable Ink (SOVI)

by Justin Ives | Jan 10, 2022

Dr Bandhu describes a novel Switchable Optically Variable Ink (SOVI), which has the capability to switch between two stable, highly contrasting colour states (generated by an optical nano-cavity featuring ultra-thin phase change materials PCM), using a simple laser...

Conference Welcome

by Justin Ives | Jan 8, 2022

No abstract is currently available for this presentation!

Keynote: Digital, Not Digitised: Security and Privacy, Identity and Credentials

by Justin Ives | Jan 8, 2022

“We need to accept that trying to digitise identity simply has not worked and we need to start creating a new kind of identity for the new digital age instead. We need to stop trying to import those analogue identity models, rooted in Industrial Age bureaucratic...

Held open for last minute paper

by | Oct 28, 2021

No abstract is currently available for this presentation!

Laser personalized DOVID based on double metal layer systems

by | Oct 16, 2021

We present novel ideas of combining optically variable devices with laser personalization for secondary image creation and protection. Three-layer systems are laser processed to drastically change their appearance from, for example, black to mirror-like, transparent...