Fiber Bragg grating based surface plasmon resonance sensor utilizing FDTD for alcohol detection applications

A fiber Bragg grating (FBG) based surface plasmon resonance (SPR) sensor is investigated using 2-D finite difference time domain (FDTD) simulation. The sensitivity and accuracy of the sensor with and without gratings is observed as well as the effect of changing the grating distance on the resonant wavelength. The findings show that high sensitivity of above 500nm/RIU and a fourfold increase in signal to noise ratio (SNR) is obtained by introducing FBG to the basic fiber optic based SPR structure. Increasing the grating period results in a red shift in the resonant wavelength, thus enabling multiple sensor fabrication on a single fiber optic cable. Simulation of the FBG based SPR sensor to detect alcohol concentration from 0 to 100% in water is also demonstrated.

[1]  R. Kashyap,et al.  Modeling of plasmon-polariton refractive-index hollow core fiber sensors assisted by a fiber Bragg grating , 2006, Journal of Lightwave Technology.

[2]  S. Mittler,et al.  3-D FDTD Analysis of Gold-Nanoparticle-Based Photonic Crystal on Slab Waveguide , 2009, Journal of Lightwave Technology.

[3]  Jaw-Luen Tang,et al.  Chemical Sensing Sensitivity of Long-Period Grating Sensor Enhanced by Colloidal Gold Nanoparticles , 2008, Sensors.

[4]  Jyrki S. Kimmel,et al.  Finite-difference time-domain modeling and experimental characterization of planar waveguide fluorescence sensors , 1992, Other Conferences.

[5]  Jacques Albert,et al.  Intrinsic temperature sensitivity of tilted fiber Bragg grating based surface plasmon resonance sensors. , 2010, Optics express.

[6]  Zhiyong Wang,et al.  Optical intensity-based long-period fiber grating biosensors and biomedical applications [Life Sciences] , 2009, IEEE Signal Processing Magazine.

[7]  Jirí Homola,et al.  Theoretical analysis of a fiber optic surface plasmon resonance sensor utilizing a Bragg grating. , 2009, Optics express.

[8]  Marc Lamy de la Chapelle,et al.  Improved analytical fit of gold dispersion: Application to the modeling of extinction spectra with a finite-difference time-domain method , 2005 .

[9]  Banshi D. Gupta,et al.  Fibre-optic sensor based on surface plasmon resonance with Ag–Au alloy nanoparticle films , 2006 .

[10]  Yuze Sun,et al.  Sensitive optical biosensors for unlabeled targets: a review. , 2008, Analytica chimica acta.

[11]  Raman Kashyap,et al.  Fiber-Bragg-grating-assisted surface plasmon-polariton sensor. , 2006, Optics letters.

[12]  Muttukrishnan Rajarajan,et al.  Novel concept of multi-channel fiber optic surface plasmon resonance sensor , 2009 .

[13]  R. W. Christy,et al.  Optical Constants of the Noble Metals , 1972 .

[14]  Kyung-Young Jung,et al.  Multispecies ADI-FDTD Algorithm for Nanoscale Three-Dimensional Photonic Metallic Structures , 2007, IEEE Photonics Technology Letters.