Journal article

Beamed UV sonoluminescence by aspherical air bubble collapse near liquid-metal microparticles

Bradley Boyd, Sergey A Suslov, Sid Becker, Andrew D Greentree, Ivan S Maksymov

SCIENTIFIC REPORTS | NATURE PUBLISHING GROUP | Published : 2020

Abstract

Irradiation with UV-C band ultraviolet light is one of the most commonly used ways of disinfecting water contaminated by pathogens such as bacteria and viruses. Sonoluminescence, the emission of light from acoustically-induced collapse of air bubbles in water, is an efficient means of generating UV-C light. However, because a spherical bubble collapsing in the bulk of water creates isotropic radiation, the generated UV-C light fluence is insufficient for disinfection. Here we show, based on detailed theoretical modelling and rigorous simulations, that it should be possible to create a UV light beam from aspherical air bubble collapse near a gallium-based liquid-metal microparticle. The beam ..

View full abstract

University of Melbourne Researchers

Grants

Awarded by Australian Research Council (ARC)


Awarded by Australian Research Council (ARC) through LIEF program


Awarded by Centre of Excellence for Nanoscale BioPhotonics


Awarded by Royal Society of New Zealand's Marsden Fund


Funding Acknowledgements

This work was supported by the Australian Research Council (ARC) through the Future Fellowship (FT180100343, FT160100357) and LIEF (LE160100051) programs, by the Centre of Excellence for Nanoscale BioPhotonics (CE140100003) and by the Royal Society of New Zealand's Marsden Fund (UOC1305). Funds for publishing this work were provided in part by The University of Canterbury Library.