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Silica nanoparticle coating on 250 to 1000 um flexible quartz optical fiber facilitates side-emission of germicidal ultraviolet light (UV-C), which shows promise for disinfection of contaminated air, water, and surfaces. This work aims to develop an understanding of light interactions with the silica nanoparticles to allow more uniform side-emission of germicidal light along longer lengths of optical fibers. Two forms of light energy (refracted light and evanescent waves) are transmitted through optical fibers.
Paul Westerhoff,Zhe Zhao,Nora Shapiro, andKen Niimi
"Nanoparticle enabled optical fibers to side-emit germicidal ultraviolet light for biofilm control", Proc. SPIE PC12372, Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXIII, PC123720J (6 March 2023); https://doi.org/10.1117/12.2650316
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Paul Westerhoff, Zhe Zhao, Nora Shapiro, Ken Niimi, "Nanoparticle enabled optical fibers to side-emit germicidal ultraviolet light for biofilm control," Proc. SPIE PC12372, Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXIII, PC123720J (6 March 2023); https://doi.org/10.1117/12.2650316