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A Polarization-Independent SPR Fiber Sensor

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Navarrete Fernández, María Cruz and Díaz Herrera, Natalia and González Cano, Agustín and Esteban Martínez, Óscar (2010) A Polarization-Independent SPR Fiber Sensor. Plasmonics, 5 (1). pp. 7-12. ISSN 1557-1955

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Official URL: http://dx.doi.org/10.1007/s11468-009-9108-0


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Abstract

The resonance of surface plasma waves in metallic layers is a strongly polarization-dependent phenomenon by the very nature of the physical effect responsible of that resonance. This implies the necessity of polarization-controlling elements to be added to any operative surface-plasmon-resonance-based sensor. A fully symmetrical, circular-section double deposition of a metallic and a dielectric layer on a uniform-waist tapered optical fiber (SymDL-UWT) permits us to completely eliminate the dependence on polarization of the plasmon excitation, with the corresponding operative advantages and basic theoretical consequences. We depict the fabrication process of these transducers, which is based on the use of a simple and efficient rotating element developed by us, and show the characteristics of the produced devices. No such device has been depicted up to date. As our experimental results show, this kind of devices can be considered a very good option for the development of simple, compact, and efficient chemical and biological sensors.


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©2009 Springer Science + Business Media
This work has been partially supported by the Spanish Government research project NESTOR (Nuevas tecnologías de sensores de fibra óptica para la observación del medio marino), ref. CTM2004-03899, and Consejería de Educación de la Comunidad de Madrid research projects ROMA (Nueva generación de refractómetros de fibra óptica para aplicaciones medioambientales), ref. GR/AMB/0615/2004, and FUTURSEN ((Bio)sensores químicos avanzados para la medida in situ de la calidad de aguas basados en elementos específicos de reconocimiento y lectura multifuncional integrada), ref. S-0505/AMB-0374, and by Fondo Social Europeo and Fondo Europeo de Desarrollo Regional.

Uncontrolled Keywords:Surface-Plasmon Resonance, Tapered Optical-Fiber, Excitation, Modes
Subjects:Sciences > Physics > Optics
ID Code:24331
Deposited On:23 Jan 2014 09:44
Last Modified:07 Feb 2014 11:16

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