Publication: Selectivity of SPR fiber sensors in absorptive media: An experimental evaluation
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2011-12-15
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Elsevier Science S A
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Abstract
Conventional surface plasmon resonance (SPR) fiber sensors show selective behavior when resonance wavelengths are tuned to absorption peaks of the surrounding medium, as it is experimentally shown and evaluated in this paper by using a doubly-deposited uniform-waist tapered optical fiber (DLUWT) and a dye as a test material. This behavior is clearly distinguishable from the usual response to nonabsorbing media and can be used to develop a new concept of SPR transducers. At the same time, the obtained results, which are in accordance with the theoretical predictions permit to increase the basic knowledge on surface plasma waves excitation in optical fibers.
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Copyright © 2011 Elsevier B.V.
This work has been partially supported by Spanish Ministry of Science and Innovation research project SPRINT (ref. CTQ2009-10550), by Community of Madrid research project FACTOTEM II (ref. S2009/ESP-1781) and by the European Social Fund and the European Fund for Regional Development.
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