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http://dx.doi.org/10.5369/JSST.2008.17.2.095

Formation of metal nano particles on optical fiber for fiber optic localized surface plasmon resonance sensor  

Lee, Hoon (Department of Electronics and Electrical Engineering, Dankook University)
Lee, Seung-Ki (Department of Electronics and Electrical Engineering, Dankook University)
Publication Information
Journal of Sensor Science and Technology / v.17, no.2, 2008 , pp. 95-99 More about this Journal
Abstract
Various etching methods of optical fiber and formation of metal nano particles on the optical fiber have been proposed for fabrication of fiber optic localized surface plasmon resonance (FO LSPR) biosensors. Different types of etched optical fiber are possible by removing the cladding of optical fiber using HF (hydrofluoric acid) solution and BHF (buffered hydrofluoric acid) solution, which results in improved surface roughness when BHF solution is used. Localized surface plasmon can be formed and measured by formation of silver and gold nano particles on the etched optical fiber. The characteristics of the etched optical fiber and metal nano particles on the etched surface of the optical fiber play a key role in dictating the sensitivity of the LSPR sensors, so that the proposed results can be expected to be applied for related research on fiber optic based biosensors.
Keywords
localized surface plasmon resonance; metal nanoparticles; fiber etching;
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