Theoretical investigation of voltage sensitivity enhancement for surface plasmon resonance based optical fiber sensor with a bimetallic layer

Abstract A bimetallic layered surface plasmon resonance (SPR) based optical fiber voltage sensor has been theoretically studied. A gold–silver bimetallic film configuration is utilized to improve both the voltage sensitivity and chemical stability. The thickness of gold–silver metal film and location of single wavelength for monitoring have been analyzed to enhance the sensitivity of sensor. The improvement of voltage sensitivity and its linearity related to voltage are attributable to the electric field enhancement due to the presence of gold–silver film structure. This bimetallic film is capable of simultaneously providing larger voltage sensitivity and better linearity, which is a significant step forward compared to sensors with single gold film structure.

[1]  N. Díaz-Herrera,et al.  Surface plasmon resonance in the visible region in sensors based on tapered optical fibers , 2014 .

[2]  J. Homola,et al.  Novel spectral fiber optic sensor based on surface plasmon resonance , 2001 .

[3]  Numerical simulation of wavelength-modulated surface plasmon resonance-based fiber optic sensor , 2013 .

[4]  Banshi D. Gupta,et al.  On the sensitivity and signal to noise ratio of a step-index fiber optic surface plasmon resonance sensor with bimetallic layers , 2005 .

[5]  W. Barnes,et al.  Surface plasmon subwavelength optics , 2003, Nature.

[6]  Y. Matsui,et al.  Effects of gold film thickness on spectrum profile and sensitivity of a multimode-optical-fiber SPR sensor , 2008 .

[7]  Yinquan Yuan,et al.  Theoretical investigation for two cascaded SPR fiber optic sensors , 2012 .

[8]  B. D. Gupta,et al.  Fiber-Optic Sensors Based on Surface Plasmon Resonance: A Comprehensive Review , 2007, IEEE Sensors Journal.

[9]  Influence of ions on dynamic response of surface plasmon resonance fiber optic sensor , 2013 .

[10]  S. Tjin,et al.  Sensitivity–stability-optimized surface plasmon resonance sensing with double metal layers , 2006 .

[11]  Banshi D. Gupta,et al.  Sensitivity evaluation of a multi-layered surface plasmon resonance-based fiber optic sensor: a theoretical study , 2005 .

[12]  Banshi D. Gupta,et al.  Fiber optic sensor based on surface plasmon resonance with nanoparticle films , 2005 .

[13]  Günter Gauglitz,et al.  Surface plasmon resonance sensors: review , 1999 .

[14]  Theoretical analysis of voltage-dependent fiber optic surface plasmon resonance sensor , 2013 .

[15]  M. Majewski,et al.  Optical properties of metallic films for vertical-cavity optoelectronic devices. , 1998, Applied optics.

[16]  B. D. Gupta,et al.  Influence of Design Parameters on the Performance of a Surface Plasmon Resonance Based Fiber Optic Sensor , 2008 .

[17]  Karla Balaa,et al.  Experimental realization and numerical simulation of wavelength-modulated fibre optic sensor based on surface plasmon resonance , 2007 .

[18]  Liangping Xia,et al.  Sensitivity Enhancement for Surface Plasmon Resonance Imaging Biosensor by Utilizing Gold–Silver Bimetallic Film Configuration , 2011 .