Optical Fiber Sensor Based on Localized Surface Plasmon Resonance Using Silver Nanoparticles Photodeposited on the Optical Fiber End

• DOI: 10.3390/s141018701
• Publication Date: 2014-10-09T14:20:20Z
• Authors: J. Ortega-Mendoza; Alfonso Padilla-V...; Carina Toxqui-Quitl; Placido Zaca-Morán; David Villegas-He...; Fernando Chávez
• Keywords: Silver nanoparticle; Localized surface plasmon; Nanophotonics

This paper reports the implementation of an optical fiber sensor to measure refractive index in aqueous media based on localized surface plasmon resonance (LSPR). We have used a novel technique known as photodeposition immobilize silver nanoparticles end. has simple instrumentation, involves laser light via and suspended medium. The was assembled using tungsten lamp white light, spectrometer, with nanoparticles. response this is such that LSPR peak wavelength linearly shifted longer wavelengths increased, showing sensitivity 67.6 nm/RIU. Experimental results are presented.