NANOSTRUCTURED FILMS FOR OPTICAL DOCUMENT SECURITY

Grant number: LP160100054 | Funding period: 2017 - 2021

Completed

Abstract

This project aims to develop a new class of synthetic thin films, with unique optical signatures as strong anti-counterfeiting features for future generations of Australian banknotes. The project expects to produce novel, ultra-thin films patterned on the nanoscale that produce vivid, easily recognisable optical effects building on recent advances in nanophotonic optical design and scalable nanofabrication strategies. The development of a range of optical security features in Australia will ensure long-term confidence in our currency. An outcome of the project could be the commercialisation of new types of anti-counterfeiting features for use in Australia and overseas.

Related publications (10)

Scholarly works icon

A General Method for Direct Assembly of Single Nanocrystals

Heyou Zhang, Yawei Liu, Arun Ashokan, Can Gao, Yue Dong, Calum Kinnear, Nicholas Kirkwood, Samantha Zaman, Fatemeh Maasoumi, Timothy D James, Asaph Widmer-Cooper, Ann Roberts, Paul Mulvaney

2022-05-28

Controlled nanocrystal assembly is a pre-requisite for incorporation of these materials into solid state devices. Many assembly me..

Scholarly works icon

Optical Janus Effect in Large Area Multilayer Plasmonic Films

Niken Priscilla, Dan Smith, Enrico Della Gaspera, Jingchao Song, Lukas Wesemann, Timothy James, Ann Roberts

2022-05-01

Plasmonic and other nanoparticles have attracted considerable interest for their role in structural coloration. The optical “Janus..

Scholarly works icon

Vivid plasmonic color under ambient light

MFS SHAHIDAN, J SONG, TD JAMES, A ROBERTS

2021-12-06

We report a novel nanoimprinted polarization-independent plasmonic pixel device utilizing different metals (Ag, Al or Au) exhibiti..

Scholarly works icon

Direct Assembly of Vertically Oriented, Gold Nanorod Arrays

Heyou Zhang, Yawei Liu, Muhammad Faris Shahin Shahidan, Calum Kinnear, Fatemeh Maasoumi, Jasper Cadusch, Eser Metin Akinoglu, Timothy D James, Asaph Widmer-Cooper, Ann Roberts, Paul Mulvaney

2021-02-03

Although many nanoscale materials such as quantum dots and metallic nanocrystals exhibit size dependent optical properties, it has..

Scholarly works icon

Towards Scalable Fabrication of Plasmonic Devices via Nanoimprint Lithography (NIL)

Muhammad Faris Shahin Shahidan

2021-01-01

Advances in theoretical and computational techniques for advancing concepts in nanophotonics along with major development in nanof..

Scholarly works icon

Concealed Structural Colors Uncovered by Light Scattering

Eser Metin Akinoglu, Jingchao Song, Calum Kinnear, Yafei Xue, Heyou Zhang, Ann Roberts, Juergen Koehler, Paul Mulvaney

2020-10-14

Unusual structural colors are demonstrated in thin-film coatings due to a combination of optical interference and light scattering..

Scholarly works icon

Self-Assembly of Plasmonic Near-Perfect Absorbers of Light: The Effect of Particle Size

Gus O Bonin, Steven J Barrow, Timothy U Connell, Ann Roberts, Anthony SR Chesman, Daniel E Gomez

2020-10-01

Structures capable of perfect light absorption promise technological advancements in varied applications, including sensing, optoe..

Scholarly works icon

Multilevel nanoimprint lithography with a binary mould for plasmonic colour printing

Muhammad Faris Shahin Shahidan, Jingchao Song, Timothy D James, Ann Roberts

2020-05-01

Pigment-free colouration based on plasmonic resonances has recently attracted considerable attention for potential in manufacturin..

Scholarly works icon

Scalable and Consistent Fabrication of Plasmonic colors via Nanoimprint Lithography

M Faris Shahin Shahidan, Jingchao Song, Timothy D James, Paul Mulvaney, Ann Roberts

2019-01-01

We utilised thermal and UV-assisted Nanoimprint Lithography (NIL) i.e. thermal and UV-assisted to produce plasmonic coloration, an..

Scholarly works icon

Direct Assembly of Large Area Nanoparticle Arrays

Heyou Zhang, Jasper Cadusch, Calum Kinnear, Timothy James, Ann Roberts, Paul Mulvaney

2018-08-01

A major goal of nanotechnology is the assembly of nanoscale building blocks into functional optical, electrical, or chemical devic..

University of Melbourne Researchers