Nano-colorimetrically determined refractive index variation with ultra-high chromatic resolution

Po Wen Tang, Chao Yi Tai

研究成果: 雜誌貢獻期刊論文同行評審

2 引文 斯高帕斯(Scopus)

摘要

We develop a front-to-end solution where the shift of chromaticity from scattering of plasmonic nanoparticles is used as the reporter for nano-environmental refractive index variation. By co-projecting possible power combinations of RGB LEDs and digitized color grid density of CCD with various luminance onto the CIE 1931 chromaticity diagram, optimum condition for nanoenvironment sensing can be achieved. The highest resolution for local refractive index change is 0.0021 per distinguishable color, which is higher than that of a typical handheld spectrometer by 4.8 times. This result shows great potential in simplifying nano-environment sensing instruments and is particularly useful for multi-point dynamical process.

原文???core.languages.en_GB???
頁(從 - 到)11709-11720
頁數12
期刊Optics Express
27
發行號8
DOIs
出版狀態已出版 - 15 4月 2019

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