Timothy J. Davis

Real-Time Phase Imaging with an Asymmetric Transfer Function Metasurface

Lukas Wesemann, Jon Rickett, Timothy J Davis, Ann Roberts

Journal article  |  2022  |  ACS PHOTONICS

The conversion of phase variations in an optical wavefield into intensity information is of fundamental importance for optical ima..

Biological Phase Contrast Imaging with Notch Filters

SB Sulejman, N Priscilla, L Wesemann, WSL Lee, TJ Davis, A Roberts

Conference Proceedings  |  2022  |  Optics InfoBase Conference Papers

Notch filters are band-stop filters used to remove unwanted frequencies. Here we demonstrate their capacity for phase contrast ima..

Metasurfaces for object plane all optical image processing

N Priscilla, L Wesemann, WSL Lee, TJ Davis, A Roberts

Conference Proceedings  |  2022  |  Optics InfoBase Conference Papers

We demonstrate metasurfaces constructed of subwavelength periodic arrays of metal particles that possess asymmetric optical transf..

Phase contrast imaging with meta-optics

L Wesemann, J Rickett, J Song, J Lou, E Hinde, TJ Davis, A Roberts

Conference Proceedings  |  2022  |  Optics InfoBase Conference Papers

The visualization of transparent objects in real-time using ultracompact optical systems remains an ongoing challenge. Here we pre..

Meta-optical and thin film devices for all-optical information processing

Lukas Wesemann, Timothy J Davis, Ann Roberts

Journal article  |  2021  |  Applied Physics Reviews

All-optical spatial frequency filtering has a long history with many applications now commonly replaced with digital alternatives...

Nanophotonics enhanced coverslip for phase imaging in biology

Lukas Wesemann, Jon Rickett, Jingchao Song, Jieqiong Lou, Elizabeth Hinde, Timothy J Davis, Ann Roberts

Journal article  |  2021  |  LIGHT-SCIENCE & APPLICATIONS

The ability to visualise transparent objects such as live cells is central to understanding biological processes. Here we experime..

Topological plasmonics: Ultrafast vector movies of plasmonic skyrmions on the nanoscale

H Giessen, T Davis, FM Zu Heringdorf, B Frank, D Janoschka, P Dreher

Conference Proceedings  |  2021  |  2021 Conference on Lasers and Electro-Optics, CLEO 2021 - Proceedings

Optical Metasurfaces for Processing of Amplitude and Phase Images

L Wesemann, J Rickett, J Song, TJ Davis, A Roberts

Conference Proceedings  |  2021  |  2021 Conference on Lasers and Electro-Optics, CLEO 2021 - Proceedings

Ultrafast vector imaging of plasmonic skyrmion dynamics

Bettina Frank, Timothy J Davis, David Janoschka, Pascal Dreher, Frank J Meyer zu Heringdorf, Harald Giessen

Conference Proceedings  |  2021  |  Ultrafast Phenomena and Nanophotonics XXV

Evanescent coupling between resonant plasmonic nanoparticles and the design of nanoparticle systems

TJ Davis

Book Chapter  |  2021