Optical fiber humidity sensors based on Localized Surface Plasmon Resonance (LSPR) and Lossy-mode resonance (LMR) in overlays loaded with silver nanoparticles

Abstract In this work, it is presented for the first time the fabrication and characterization of a novel optical fiber humidity sensor based on both Lossy-mode resonance (LMR) and Localized Surface Plasmon Resonance (LSPR). Those resonances were created using Layer-by-Layer (LbL) polymeric coating loaded with Ag nanoparticles (Ag NPs) and fabricated onto an optical fiber core. Firstly, it was observed a LSPR attenuation band, inherent to the presence of the Ag NPs in the coating. This LSPR band showed a slight intensity variation with Relative Humidity (RH) changes but no significant wavelength dependence was observed. Otherwise several LMR attenuation bands were observed in the 400–1100 nm spectral range as the thickness coating was increased. The LMR maxima depend strongly on the thickness and refractive index of the LbL overlay, and therefore, they show a strong wavelength response to Relative Humidity (RH) changes. A wavelength-based optical humidity sensor was achieved and the dynamic range (42.4 nm), transfer function, response time (476 ms and 447 ms for rise/fall respectively) were characterized. The results confirm that this sensor could be used even for monitoring human breathing.

[1]  Jeffrey N. Anker,et al.  Biosensing with plasmonic nanosensors. , 2008, Nature materials.

[2]  Michael F. Rubner,et al.  Influence of the Degree of Ionization on Weak Polyelectrolyte Multilayer Assembly , 2005 .

[3]  B. Culshaw,et al.  Fiber-Optic Sensing: A Historical Perspective , 2008, Journal of Lightwave Technology.

[4]  Chi-En Lu,et al.  Humidity Sensors: A Review of Materials and Mechanisms , 2005 .

[5]  J. Goicoechea,et al.  Single-stage in situ synthesis of silver nanoparticles in antibacterial self-assembled overlays , 2012, Colloid and Polymer Science.

[6]  Byoungho Lee,et al.  Review of the present status of optical fiber sensors , 2003 .

[7]  Francisco J. Arregui,et al.  Utilization of white light interferometry in pH sensing applications by mean of the fabrication of nanostructured cavities , 2009 .

[8]  S. Buontempo,et al.  Radiation hard humidity sensors for high energy physics applications using polymide-coated Fiber Bragg Gratings sensors , 2011 .

[9]  Michael F. Rubner,et al.  pH-Dependent Thickness Behavior of Sequentially Adsorbed Layers of Weak Polyelectrolytes , 2000 .

[10]  L. Lechuga,et al.  LSPR-based nanobiosensors , 2009 .

[11]  Julian D. C. Jones,et al.  Detection of high humidity by optical fibre sensing at telecommunications wavelengths , 1998 .

[12]  Francisco J. Arregui,et al.  Tunable humidity sensor based on ITO-coated optical fiber , 2010 .

[13]  Ignacio Del Villar,et al.  Optical fiber refractometers based on lossy mode resonances supported by TiO2 coatings. , 2010, Applied optics.

[14]  J. Goicoechea,et al.  An antibacterial submicron fiber mat with in situ synthesized silver nanoparticles , 2012 .

[15]  Gil-Jae Lee,et al.  Preparation of Silver Dendritic Nanoparticles Using Sodium Polyacrylate in Aqueous Solution , 2004 .

[16]  Yingjie Zhu,et al.  Monodisperse α-Fe2O3 Mesoporous Microspheres: One-Step NaCl-Assisted Microwave-Solvothermal Preparation, Size Control and Photocatalytic Property , 2010, Nanoscale research letters.

[17]  V. Sharma,et al.  Silver nanoparticles: green synthesis and their antimicrobial activities. , 2009, Advances in colloid and interface science.

[18]  J. Goicoechea,et al.  An antibacterial coating based on a polymer/sol-gel hybrid matrix loaded with silver nanoparticles , 2011, Nanoscale research letters.

[19]  Humidity sensor based on silver nanoparticles embedded in a polymeric coating , 2011, 2011 Fifth International Conference on Sensing Technology.

[20]  Lossy mode resonance-based optical fiber humidity sensor , 2011, 2011 IEEE SENSORS Proceedings.

[21]  Luis M Liz-Marzán,et al.  Tailoring surface plasmons through the morphology and assembly of metal nanoparticles. , 2006, Langmuir : the ACS journal of surfaces and colloids.

[22]  T. L. Yeo,et al.  Fibre-optic sensor technologies for humidity and moisture measurement , 2008 .

[23]  G. Blanchard,et al.  Formation and encapsulation of gold nanoparticles using a polymeric amine reducing agent , 2007 .

[24]  Francisco J. Arregui,et al.  Optical fiber pH sensor based on lossy-mode resonances by means of thin polymeric coatings , 2011 .

[25]  Gang Wang,et al.  Controlled synthesis of water-dispersible faceted crystalline copper nanoparticles and their catalytic properties. , 2010, Chemistry.

[26]  Ignacio Del Villar,et al.  Generation of Lossy Mode Resonances With Absorbing Thin-Films , 2010, Journal of Lightwave Technology.

[27]  S. Yee,et al.  A fiber-optic chemical sensor based on surface plasmon resonance , 1993 .

[28]  G. Sergeev,et al.  Photoreduction of Ag+ ions and coalescence of silver nanoparticles in aqueous polyacrylate solutions , 2007 .

[29]  Yinian Zhu,et al.  Detection of external refractive index change with high sensitivity using long-period gratings in photonic crystal fiber , 2008 .

[30]  A. Henglein,et al.  Reduction of Ag+ on Polyacrylate Chains in Aqueous Solution , 1998 .

[31]  Claire M. Cobley,et al.  Shape-Controlled Synthesis of Silver Nanoparticles for Plasmonic and Sensing Applications , 2009 .

[32]  R Aashia,et al.  Strain-Temperature Discrimination Using a Single Fiber Bragg Grating , 2010, IEEE Photonics Technology Letters.

[33]  M. Hernáez,et al.  Dual-Peak Resonance-Based Optical Fiber Refractometers , 2010, IEEE Photonics Technology Letters.