Selectivity of SPR fiber sensors in absorptive media: An experimental evaluation

SENSORS AND ACTUATORS B-CHEMICAL

卷:160

Article

Leite, Ivo²  Navarrete, Maria-Cruz²  Diaz-Herrera, Natalia¹  Gonzalez-Cano, Agustin¹  Esteban, Oscar³ 

[1] Univ Complutense, Escuela Univ Opt, Dept Opt, Madrid 28037, Spain

[2] Univ Complutense, Fac CC Fis, Dept Opt, E-28040 Madrid, Spain

[3] Univ Alcala, Escuela Politecn, Dept Elect, Madrid 28871, Spain

关键词: Surface plasmon resonance;    Fiber optic sensors;    Absorption;    Tapered optical fibers;   

DOI  :  10.1016/j.snb.2011.08.033

来源: Elsevier

【 摘 要 】

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. (C) 2011 Elsevier B.V. All rights reserved.

【 授权许可】

Free