Hypersensitivity and Applications of Cladding Modes of Optical Fibers Coated with Nanoscale Metal Layers

Sensors

Jacques Albert¹  Violeta Marquez-Cruz¹  Fu Liu¹ 

[1] Department of Electronics, Carleton University, Ottawa, ON K1S 5B6, Canada;

关键词: fiber gratings;    optical fiber sensors;    surface plasmons;    metal nanoparticles;   

DOI  :  10.3390/s18051518

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown