Contact angle measurement on xerogel sensitivity layer for optical fibre sensor

0304223 - URE-Y 20030141 RIV CH eng J - Článek v odborném periodiku
Cherif, K. - Hleli, S. - Abdelghani, A. - Jaffrezic-Renault, N. - Matějec, Vlastimil
Contact angle measurement on xerogel sensitivity layer for optical fibre sensor.
Materials Science & Engineering C-Materials for Biological Applications. Roč. 23, č. 5 (2003), s. 571-577. ISSN 0928-4931. E-ISSN 1873-0191
Grant CEP: GA ČR GA102/02/0780
Výzkumný záměr: CEZ:AV0Z2067918
Klíčová slova: optical fibres * measurement * fibre lasers
Kód oboru RIV: JA - Elektronika a optoelektronika, elektrotechnika
Impakt faktor: 1.122, rok: 2003

This paper deals with approach for the detection of chemical vapours based on refractive-index changes of a silica xerogel layer deposited as an optical cladding on the fibre core. The refractive-index changes are evaluated by means of changes of the output power at the end put of the fibre. The sensitivies of tetraethoxysilane /TEOS/ and methyltriethoxysilane /MTEOS/-based xerogel layers to toluene and water are presented in the paper. The hydrophobicity of the two-xerogel layers and their surface-free energy has been determined with contact angle measurements.
Trvalý link: http://hdl.handle.net/11104/0114364