Abstract
Theoretical and experimental results are presented to show that the complex effective index of the modes of optical fibers coated with non-uniform metal coatings of gold, silver, copper, or palladium, with thicknesses between 0 and 20 nm, acquire a greatly enhanced sensitivity to various forms of perturbations. Thickness changes of less than 1 nm can be measured as well as the binding of record low concentrations of chemical and biochemical species.
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Citations
Sep 7, 2018·Optics Express·C CaucheteurR Wattiez
Apr 9, 2020·Sensors·Zheyu WuJinghua Sun
Mar 31, 2019·Sensors·Weihang GaoSiu Chun Michael Ho