Improved performance of SPR sensors by a chemical etching of tapered optical fibers

We present the results of a chemical attack on the optical fiber surface previous to the deposition of the double layer (metal plus dielectric) in Double-layer uniform-waist tapered fibers (DLUWTs) used for the development of SPR sensors. It is shown how this simple chemical treatment increases the...

Descripción completa

Detalles Bibliográficos
Autores: Díaz Herrera, Natalia, Esteban Martínez, Óscar, Navarrete Fernández, María Cruz, González Cano, Agustín, Benito Peña, María Elena, Orellana Moraleda, Guillermo
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/44106
Acceso en línea:https://hdl.handle.net/20.500.14352/44106
Access Level:acceso abierto
Palabra clave:535
Surface Plasmon Resonance
Tapered Optical Fibers
Hydrofluoric Acid
Fiber-Optic Sensors
Óptica (Física)
2209.19 Óptica Física
Descripción
Sumario:We present the results of a chemical attack on the optical fiber surface previous to the deposition of the double layer (metal plus dielectric) in Double-layer uniform-waist tapered fibers (DLUWTs) used for the development of SPR sensors. It is shown how this simple chemical treatment increases the roughness of the surface and permits improvement of the stability of the deposits and the general performance of the sensors. The obtained devices are robust and very compact, their sensitivity is good and repeatability of the measurements is remarkably increased. The procedure can be useful for any fiber-optic sensor.