issue banknote technology report › wp...issue 06.20 41/172 issue 06.20 presented by 40/ 172...

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06.20

BANKNOTE TECHNOLOGY REPORT

GLEITSMANN SECURITY INKS

NOTE PRINTING AUSTRALIA

OBERTHUR FIDUCIAIRE

NANOTECH SECURITY

HUNKELER SYSTEME

SPECTRA SYSTEMS

CRANE CURRENCY

HUECK FOLIEN

KBA-NOTASYS

ORELL FÜSSLI

CCL SECURE

LANDQART

DE LA RUE

KRYPTEN

PORTALS

KOMORI

SURYS

PWPW

KURZ

CBN

Additional:CURRENCY RESEARCH

C O N T E N T

w w w. b a n k n o t e - i n d u s t r y - n e w s . c o m

Created by

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B A N K N O T E T E C H N O L O G Y R E P O R T

N A N O T E C H S E C U R I T Y C O R P.

KOLOURDEPTH – A UNIQUE COMBINATION

OF MULTI-COLOUR, 3D STEREO DEPTH AND MOVEMENT USING

NANO-OPTICS

N A N O T E C H S E C U R I T Y C O R P .

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N A N O T E C H S E C U R I T Y C O R P.

KOLOURDEPTH – A UNIQUE COMBINATION

OF MULTI-COLOUR, 3D STEREO DEPTH AND MOVEMENT USING

NANO-OPTICS


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B A N K N O T E T E C H N O L O G Y R E P O R T N A N O T E C H S E C U R I T Y C O R P .


With billions of security features in circulation, Nanotech Security Corp. has been delivering secure and innovative products for currency authentication since 2014. Exclusive to the government and banknote industry, Nanotech’s new KolourDepth™ security features combine “always on” multi-colour, 3D stereo depth, and movement to deliver uncompromising security and limitless design flexibility for banknote security stripes, threads, and patches.

KolourDepth’s nanostructures, microstructures, and nano-fabrication techniques along with its proprietary softwarealgorithm helps protect the public by increasing thesecurity of banknotes. Strong durability and an ultra-thin formfactor (< 5 micron) make KolourDepth compatible with multipleapplication processes and substrates.

KOLOURDEPTH – A unique combination

of multi-colour, 3D stereo depth and movement

using Nano-Optics

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With billions of security features in circulation, Nanotech Security Corp. hasbeen delivering secure and innovative products for currency authenticationsince 2014. Exclusive to the government and banknote industry, Nanotech’snew KolourDepth™ security features combine “always on” multi-colour, 3Dstereo depth, and movement to deliver uncompromising security and limitlessdesign flexibility for banknote security stripes, threads, and patches.

KolourDepth’s nanostructures, microstructures, and nano-fabrication techniques along with its proprietary software algorithm helps protect the public by increasing the security of banknotes. Strong durability and an ultra-thin form factor (< 5 micron) make KolourDepth compatible with multiple application processes and substrates.

KOLOURDEPTH – A unique combination

of multi-colour, 3D stereo depth and movement

using Nano-Optics

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MICROSTRUCTURES

Microstructures come in many shapesand sizes. They are physically muchlarger than the light waves they interactwith, but smaller than what one can seewith the naked eye. Microstructures arecommon in many high-end security OVDstoday such as micro-lenses, micro-mirrors,and diffraction gratings. Nanotech’smicrostructures are generally thinnerthan these, but still at the micro scale.Their primary optical characteristic is todiffuse and/or reflect all waves of lightin a specific manner. They can be usedto control how light behaves on a macro-scale i.e. specifying a particular viewingangle that light will be generally reflectedtowards. Specific applications includediffusing light hitting the surface of areflective material (e.g. aluminum) suchthat the surface appears a matte whiteor can create a mirror-reflection point sothat all the light is reflected at a specificdesired viewing angle. Microstructurescan be treated like pixels, and can create

basic 2D monochromatic imagery, howeverthey cannot create colour or depth on theirown.

COMBINING MICRO AND NANO TOCREATE KOLOURDEPTH

• Static colour images can be animated

• Colour, depth and movement can beintegrated in a single visual feature

Plasmonic nanostructures and plasmoniccolour pixels can be formed along the 3Dcontour of a microstructure. Combiningmicrostructures and nanostructuresaugments both the microstructure andnanostructure effects by controlling thelight at all scales: macro, micro, and nano.In doing so, Nanotech can create manyunique effects by combining colour, depth,and movement. Origination of such exotichybrid structures is extremely difficult andcomplex and creates an enormous hurdlefor the counterfeiter to emulate. Nanotechhas invested considerable time and

SURFACE PLASMONICS

Nanotechnology holds the potential to create new and exciting optical phenomenon. Surface plasmonic resonance is one such phenomenon that occurs in subwavelength metal nanostructures sandwiched between dielectric materials. The structures can change the colour of a metal surface through selective light wave absorption, reflection, and transmission. The colour effect is closer in look to metallic colour pigments than diffractive

“holographic” effects.

Plasmonic resonance provides a new way to create colourful surfaces and imagery at a resolution unmatched by any current print, lens-based or holographic technologies. Nanostructures can be engineered into plasmonic pixels which can further be sub-divided into RGB or CMYK-like sub-pixels to produce full colour imagery or specific colours chosen from the available colour palette for a true-colour print-like approach to multi-colour imagery.

When implemented in a window of a banknote or security document, the plasmonic colour feature can exhibit different colours on both sides of the window when observing the image in reflection. Additionally, the image can be observed in transmission for a third set of unique colours by holding the banknote up to a light and viewing it through the window. Asymmetrical plasmonic structures, such as nano-pillars, will exhibit different colours on each side, but the same colour in transmission no matter which side the user is viewing.


KOLOURDEPTH ORIGINATION – NO COLOURS

ARE PRESENT IN THE ORIGINATION, THE

PLASMONIC COLOURS ONLY APPEAR ONCE

THE CORRECT DIELECTRIC AND METAL

MATERIALS ARE APPLIED.

150nm

4µm

Bare micro-structure

Nano-structures conformedto micro-structures

VIEWED IN REFLECTION

VIEWING IN TRANSMISSION

PROVIDES ADDITIONAL UNIQUE

AUTHENTICATION. MICRO-DOMES WITH PLASMONIC

NANOSTRUCTURES FORMED OVER

AND INTO THE SURFACE OF THE DOMES.

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MICROSTRUCTURES

Microstructures come in many shapes and sizes. They are physically much larger than the light waves they interact with, but smaller than what one can see with the naked eye. Microstructures are common in many high-end security OVDs today such as micro-lenses, micro-mirrors, and diffraction gratings. Nanotech’s microstructures are generally thinner than these, but still at the micro scale. Their primary optical characteristic is to diffuse and/or reflect all waves of light in a specific manner. They can be used to control how light behaves on a macro-scale i.e. specifying a particular viewing angle that light will be generally reflected towards. Specific applications include diffusing light hitting the surface of a reflective material (e.g. aluminum) such that the surface appears a matte white or can create a mirror-reflection point so that all the light is reflected at a specific desired viewing angle. Microstructures can be treated like pixels, and can create

basic 2D monochromatic imagery, however they cannot create colour or depth on their own.

COMBINING MICRO AND NANO TOCREATE KOLOURDEPTH

• Static colour images can be animated

• Colour, depth and movement can beintegrated in a single visual feature

Plasmonic nanostructures and plasmonic colour pixels can be formed along the 3D contour of a microstructure. Combining microstructures and nanostructures augments both the microstructure and nanostructure effects by controlling the light at all scales: macro, micro, and nano. In doing so, Nanotech can create many unique effects by combining colour, depth, and movement. Origination of such exotic hybrid structures is extremely difficult and complex and creates an enormous hurdle for the counterfeiter to emulate. Nanotech has invested considerable time and

SURFACE PLASMONICS

Nanotechnology holds the potentialto create new and exciting opticalphenomenon. Surface plasmonic resonanceis one such phenomenon that occurs insubwavelength metal nanostructuressandwiched between dielectric materials.The structures can change the colour of ametal surface through selective light waveabsorption, reflection, and transmission.The colour effect is closer in look tometallic colour pigments than diffractive

“holographic” effects.

Plasmonic resonance provides a new way tocreate colourful surfaces and imagery at aresolution unmatched by any current print,lens-based or holographic technologies.Nanostructures can be engineered intoplasmonic pixels which can further be sub-divided into RGB or CMYK-like sub-pixelsto produce full colour imagery or specificcolours chosen from the available colourpalette for a true-colour print-like approachto multi-colour imagery.

When implemented in a window of abanknote or security document, theplasmonic colour feature can exhibitdifferent colours on both sides of thewindow when observing the image inreflection. Additionally, the image can beobserved in transmission for a third set ofunique colours by holding the banknote upto a light and viewing it through the window.Asymmetrical plasmonic structures, suchas nano-pillars, will exhibit differentcolours on each side, but the same colourin transmission no matter which side theuser is viewing.


KOLOURDEPTH ORIGINATION – NO COLOURS

ARE PRESENT IN THE ORIGINATION, THE

PLASMONIC COLOURS ONLY APPEAR ONCE

THE CORRECT DIELECTRIC AND METAL

MATERIALS ARE APPLIED.

150nm

4µm

Bare micro-structure

Nano-structures conformedto micro-structures

VIEWED IN REFLECTION

VIEWING IN TRANSMISSION

PROVIDES ADDITIONAL UNIQUE

AUTHENTICATION. MICRO-DOMES WITH PLASMONIC

NANOSTRUCTURES FORMED OVER

AND INTO THE SURFACE OF THE DOMES.

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The advantage of this technology isseveral-fold. Like printed features,plasmonic colour images are alwaysvisible (“always on”) and are extremelyeasy to see, as they feature deep coloursaturation and contrast. When coupledwith microstructures Nanotech can add3D stereo depth and other interactivefeatures. The customization of plasmoniccolour pixels holds no theoretical limit;Nanotech can deliver multi-colour 3Dimagery in a single security feature,overcoming one of the main limitationsof today’s lens-based features. Themicrostructures Nanotech employs arevery thin, ~3.5 um in height, and thusthe total thickness of the security featurecan be less than 5 um, making it suitablefor threads, stripes, labels, and laminates.Together this provides an always visibleand highly unique authentication featurethat is easy to trigger and extremelydifficult to simulate or replicate.

CONCLUSION

KolourDepth represents a next-generationnanotechnology OVD security product that

provides a unique combination of multi-colour, 3D stereo depth, and movementthat is memorable and easy to use. Nano-scale structures can be exploited toproduce highly unique, visible featuresin both reflection and transmission.The micro and nano-scale structuresintroduced here have been shown to havemany advantages over traditional gratingand lens-based optics. The combination ofnano-scale origination, proprietaryalgorithms, and specialized manufacturingtechniques result in a new generationof security features. With Nanotech’sKolourDepth, the world’s currency issuerscan create memorable and custom securityfeatures that seamlessly fit intoa banknote’s overall design whileoffering the public easy and intuitiveauthentication. For more information onNanotech or KolourDepth visitwww.nanosecurity.ca

NANOTECH SECURITY CORP.

Email: [email protected]: www.nanosecurity.ca

resources into developing a multi-stage electron beam lithography process which has enabled the world-first production of these structures on a commercial scale.

Combing the power of nano-scale plasmonic colouration and angular viewing of microstructures, opens pathways to a variety of effects: static full colour imagery, simple colour-shifting films, complex 3D images, and movement can be realized from a single layer of embossed aluminum-coated structures.

ADVANTAGES

• Multiple application types: threads,stripes, labels, laminates

• High visibility

• Simple to trigger

• High interactivity

• High degree of freedom for design andcustomization

NANOTECH PHYSICS AND GRAPHIC ENGINES MAP MULTIPLE LAYERS

TO CREATE 3D STEREO DEPTH, COLOUR AND MOVEMENT.

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The advantage of this technology is several-fold. Like printed features, plasmonic colour images are always visible (“always on”) and are extremely easy to see, as they feature deep colour saturation and contrast. When coupled with microstructures Nanotech can add 3D stereo depth and other interactive features. The customization of plasmonic colour pixels holds no theoretical limit; Nanotech can deliver multi-colour 3D imagery in a single security feature, overcoming one of the main limitations of today’s lens-based features. The microstructures Nanotech employs are very thin, ~3.5 um in height, and thus the total thickness of the security feature can be less than 5 um, making it suitable for threads, stripes, labels, and laminates. Together this provides an always visible and highly unique authentication feature that is easy to trigger and extremely difficult to simulate or replicate.

CONCLUSION

KolourDepth represents a next-generation nanotechnology OVD security product that

provides a unique combination of multi-colour, 3D stereo depth, and movement that is memorable and easy to use. Nano-scale structures can be exploited to produce highly unique, visible features in both reflection and transmission. The micro and nano-scale structures introduced here have been shown to have many advantages over traditional grating and lens-based optics. The combination ofnano-scale origination, proprietary algorithms, and specialized manufacturing techniques result in a new generation of security features. With Nanotech’s KolourDepth, the world’s currency issuers can create memorable and custom securityfeatures that seamlessly fit into a banknote’s overall design while offering the public easy and intuitive authentication. For more information on Nanotech or KolourDepth visitwww.nanosecurity.ca

NANOTECH SECURITY CORP.

Email: [email protected]: www.nanosecurity.ca

resources into developing a multi-stageelectron beam lithography process whichhas enabled the world-first production ofthese structures on a commercial scale.

Combing the power of nano-scaleplasmonic colouration and angularviewing of microstructures, openspathways to a variety of effects: staticfull colour imagery, simple colour-shiftingfilms, complex 3D images, and movementcan be realized from a single layer ofembossed aluminum-coated structures.

ADVANTAGES

• Multiple application types: threads,stripes, labels, laminates

• High visibility

• Simple to trigger

• High interactivity

• High degree of freedom for design andcustomization

NANOTECH PHYSICS AND GRAPHIC ENGINES MAP MULTIPLE LAYERS

TO CREATE 3D STEREO DEPTH, COLOUR AND MOVEMENT.

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