Discover the latest developments in security features, substrates, inks, imaging technologies, smart printing, product intelligence, optically variable devices, micro- and nano-optics

ODS is the most valuable conference in the industry to understand the trend and direction of optical technology...

Toppan Printing


Timothy James

The Plasmonic Pixel: Nanophotonic Structures For Security Feature Production With Large Surface Area and Wide Applicability

Timothy James

Reserve Bank of Australia, School of Physics (Australia)

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The Plasmonic Pixel (PP) is a novel, bright, polarisation-sensitive-colour-switching security feature.

The PP utilises optical plasmonic nano-antennas as the fundamental building block of the centimetre-scale full colour security feature.  Arrays of CMYK coloured aluminium nano-antennas are arranged using the PP design algorithm to produce the full colour image.

Nano-imprint lithographic techniques provide the means to integrate the feature into banknote production.


Color Movement Effects Based on Zero-Order Diffractive Filter

Harald Walter

OVD Kinegram (Switzerland)

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Zero-order effects are known as security features for government documents and banknotes for years. This type of feature possesses a rotation-induced color shift in direct reflection and is realized by subwavelength gratings coated with dielectric, high refractive index material.

We present zero-order diffractive color filters with a gradually variation of the azimuth angle. Such filters show continuous movement of the reflected color upon rotation or upon tilting about its vertical axis.

Dual Transmission And Reflection Mode: A New Plasmonic Effect For OVDs

Jean Sauvage-Vincent

Hologram Industries (France)

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Using the optical losses to create asymmetrical optical effects in reflection viewing with symmetrical effects in transmission viewing enables the creation of a new kind of optical device based on plasmonic activity.

Unbalancing the sinusoidal profile through layering materials with different optical properties leads to different optical losses (scattering, diffraction, etc) between the front and the back which result in different coloured reflections between each side of the structure.

This duality between reflection and transmission allows us to design a new optical component with an easy to check behaviour.


LILIAC: Transmissive Security Feature And Its Integration Into Banknotes And Identity Documents

Beatriz Cerrloaza

Alise Devices, S.L. (Spain)

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LILIAC is a totally transparent security feature in daylight conditions.  It shows a really awesome visual effect when checked under the polarized light emitted by any everyday display.

Different images very clearly recognizable appear on each side of the feature without any interference. Its transparency is maintained at all times continually working in transmission.

The complex manufacturing process together with the integration challenges achieved will be presented.


User Experience and User Interface Functions of Optical Authenticity Features

Hans de Heij

De Nederlandsche Bank NV. Amsterdam. (Netherlands)

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The Coaster-model introduces six User Experience functions and four User Interface functions. This approach brings clarity in the largely unknown domain of human behaviour with banknotes, including the perception of authenticity features.

The model is applied on the first banknotes of the Europa-series and includes public feedback on two optical features, a colour changing rolling bar and a portrait hologram.

CSEM SA Basel - Guillaume Basset72x96

Subwavelength Gratings For OVDs: From Local Interactions To Using Light Transport

Guillaume Basset

CSEM (Switzerland)

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In the past 30 years, CSEM SA developed subwavelength gratings as OVDs. As an example, Resonant Waveguide Gratings (RWG) were integrated in security documents under the brand DID™.

These RWGs are usually called Zero-Order Devices because of their Zero-Order readout. But new developments of RWGs enable readout schemes out of the Zero-Order using more complex light transport.

Alternatively, light transport can be engineered in the thicker dielectric layers of secured documents, using embedded subwavelength gratings.

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