Plasmonic Metasurfaces for Optical Information Processing
L Wesemann, E Panchenko, K Singh, DE Gomez, TJ Davis, A Roberts, MC Simpson (ed.), S Juodkazis (ed.)
SPIE MICRO + NANO MATERIALS, DEVICES, AND APPLICATIONS 2019 | SPIE-INT SOC OPTICAL ENGINEERING | Published : 2019
Optical spatial frequency filtering is a key method for information processing in biological and technical imaging. While conventional approaches rely on bulky components to access and filter the Fourier plane content of a wavefield, nanophotonic approaches for spatial frequency filtering have recently gained attention. Here computational and experimental progress towards the design and demonstration of metasurfaces with spatial frequency filtering capability for optical image processing will be presented. Using the example of a metasurface consisting of radial rod trimers we demonstrate its potential to perform edge enhancement in an amplitude image and conversion of phase gradients in a wa..View full abstract
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Awarded by Australian Research Council
Awarded by ARC
This work was performed in part at the Melbourne Centre for Nanofabrication (MCN) in the Victorian Node of the Australian National Fabrication Facility (ANFF). This research was also supported under the Australian Research Council's Discovery Projects funding scheme project number DP160100983. D.G. acknowledges the ARC for support through a Future Fellowship (FT140100514).