Thin aerogel layers coated on silica optical fibers and their interaction with gases and liquids as a functional basis for chemical sensing

0303685 - URE-Y 20000042 RIV CN eng J - Journal Article
Matějec, Vlastimil - Chomát, Miroslav - Hayer, Miloš
Thin aerogel layers coated on silica optical fibers and their interaction with gases and liquids as a functional basis for chemical sensing.
Science Foundation in China. Roč. 7, č. 2 (1999), s. 61-64
[Chinese-Czech Symposium Advanced Materials and Devices for Optoelectronics /2./. Beijing, 13.09.1999-14.09.1999]
R&D Projects: GA ČR GA102/98/1358
Institutional research plan: CEZ:AV0Z2067918
Keywords : optical sensors * optical fibres
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

The paper deals with using thin gel layers coated on silica optical fibers for chemical detection. The sensitivity of polysiloxane layers and TiOTi-doped polysiloxane layers to hydrocarbons and chlorinated hydrocarbons is discussed with the aim of tailoring both the sensitivity and selectivity of these materials. Data on the sensitivity of polysiloxane gel layers with pH indicators, Cu-phtalocyanine and Cu-ephedrine to acids and organophosphorous compounds are given.
Permanent Link: http://hdl.handle.net/11104/0113872