Optical fiber probes for fluorescence based oxygen sensing

• Tipo: Artigo em Revista Científica Internacional
• Data: 2004

Autores

Jorge, PAS (Autor) Outra; Caldas, P (Autor) Outra; Rosa, CC (Autor) FCUP; Oliva, AG (Autor) Outra; Santos, JL (Autor) FCUP

Revista

Título: Sensors and Actuators, B: Chemical

Vol. 103

Páginas: 290-299

ISSN: 0925-4005

Editora: Elsevier

Indexação

ISI Web of Knowledge - 82 Citações

Scopus - 90 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

Outras Informações

ID Authenticus: P-000-8FX

DOI: 10.1016/j.snb.2004.04.086

Abstract (EN): An optical fiber sensing system, for monitoring oxygen aiming in vivo nuclear magnetic resonance (NMR) applications is presented. Oxygen detection is based on the dynamic quenching of the fluorescence of a ruthenium complex trapped in the porous structure of a sol-gel silica film. Oxygen concentration is determined by phase-modulation fluorometry. Preliminary results concerning the characterization of doped sol-gel thin films deposited by dip coating in glass slides and in optical fiber probes are presented. Four different probe configurations are tested and compared. Best results are obtained with a fiber taper configuration which shows reproducibility and best excitation efficiency. This structure is fully characterized and some considerations regarding optimal fiber optical sensing probes for 02 detection are addressed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10