Sol-gel protective layer for fiberoptic chemical microsensors.

• Autorzy: Andrzejewski D. , Podbielska H. , Ulatowska-Jarża A.
• Języki publikacji: EN

Abstrakty

EN

The sol-gel-derived materials can be used in construction of various optoelectronic devices, including optodes of fiberoptic sensors. The porous matrices provide excellent media for a variety of organic and inorganic compounds, which can serve as detectors. They can work in various environments with different refractive indices. We report on the influence of the refractive index of external media on the overall performance of the fiberoptic chemical microsensors. Especially, the sensors based on the intensity measurement are influenced by the refractive index of the environment The application of the sol-gel thin film as a protective layer of the microoptode is discussed. The light intensity angular distribution was examined for both the bare fiber tip, as well as for the tip covered with a sol-gel layer. The magnitude of the microsensor response signal was measured, as well. A smaller signal decrease was observed for the microoptode covered by a sol-gel. A possible application of the method described for a fiberoptic oxygen microsensor is discussed.

Słowa kluczowe

EN

sol-gel protective layer; microsensors; sol-gel derived materials; optoelectronic devices; fiber optic sensors; intensity measurement; sol-gel thin film; protective layer; microoptode

PL

zol-żel; warstwa ochronna; mikrosensor; urządzenia optoelektroniczne

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2000
• Tom: Vol. 30, nr 4
• Strony: 503--508
• Opis fizyczny: Bibliogr. 7 poz., rys. 5, tab. 1

Twórcy

autor

Andrzejewski D.

autor

Podbielska H.

autor

Ulatowska-Jarża A.

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.