Plasmonics on silicon promising for light-based computing: Page 2 of 2

May 15, 2020 //By Julien Happich
photonic architecture
Researchers in Australia and Germany have developed a modular method to design nanoscale devices that combine the best of traditional chip design with photonic architecture in a hybrid structure.

On-chip nanometre-scale devices that use metals (known as “plasmonic” devices) allow for functionality that no conventional photonic device allows. Most notably, they efficiently compress light down to a few billionths of a metre and thus achieve hugely enhanced, interference-free, light-to-matter interactions.

“We have shown that two separate designs can be joined together to enhance a run-of-the-mill chip that previously did nothing special,” Dr Tuniz said. This modular approach allows for rapid rotation of light polarisation in the chip and, because of that rotation, quickly permits nano-focusing down to about 100 times less than the wavelength.

University of Sydney - www.sydney.edu.au

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