Timothy James

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

Journal article  |  2022  |  ADVANCED OPTICAL MATERIALS

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

Optical Janus Effect in Large Area Multilayer Plasmonic Films

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

Journal article  |  2022  |  Advanced Photonics Research

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

Vivid plasmonic color under ambient light

MFS SHAHIDAN, J SONG, TD JAMES, A ROBERTS

Journal article  |  2021  |  Optics Express

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

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

Journal article  |  2021  |  ADVANCED FUNCTIONAL MATERIALS

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

Multilevel nanoimprint lithography with a binary mould for plasmonic colour printing

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

Journal article  |  2020  |  NANOSCALE ADVANCES

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

Ultracompact Camera Pixel with Integrated Plasmonic Color Filters

Evgeniy Panchenko, Lukas Wesemann, Daniel E Gomez, Timothy D James, Timothy Davis, Ann Roberts

Journal article  |  2019  |  ADVANCED OPTICAL MATERIALS

Photodetector size imposes a fundamental limit on the amount of information that can be recorded by an image sensor. Compact, high..

Scalable and Consistent Fabrication of Plasmonic colors via Nanoimprint Lithography

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

Conference Proceedings  |  2019  |  SPIE MICRO + NANO MATERIALS, DEVICES, AND APPLICATIONS 2019

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

Metasurfaces, dark modes, and high NA illumination

Lukas Wesemann, Panji Achmari, Kalpana Singh, Evgeniy Panchenko, Timothy D James, Daniel E Gomez, Timothy J Davis, Ann Roberts

Journal article  |  2018  |  OSA CONTINUUM

The interaction of a focused beam with a metasurface supporting dark modes is investigated. We show computationally and experiment..

Direct Assembly of Large Area Nanoparticle Arrays

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

Journal article  |  2018  |  ACS NANO

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

Directed Chemical Assembly of Single and Clustered Nanoparticles with Silanized Templates

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

Journal article  |  2018  |  LANGMUIR

The assembly of nanoscale materials into arbitrary, organized structures remains a major challenge in nanotechnology. Herein, we r..