6533b7d2fe1ef96bd125eb8d
RESEARCH PRODUCT
Irradiation induced defects in fluorine doped silica
Nicolas RichardMarco CannasG. OriglioG. OriglioSébastien GirardYoucef OuerdaneRoberto BoscainoAziz Boukentersubject
Nuclear and High Energy Physics[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]Optical fiberMaterials scienceOptical fiberDopingchemistry.chemical_elementSilicaPhotochemistryCrystallographic defectSilica irradiation effects fluorine dopinglaw.inventionNuclear magnetic resonancechemistrylawElectron spin resonanceHalogenPACS: 71.55.Jv; 61.72.Ww; 76.30.Mi; 61.80.Ed; 61.80.BaFluorineDefectsIrradiationElectron paramagnetic resonanceSpectroscopyInstrumentationFluorine dopingdescription
International audience; The role of fluorine doping in the response to UV pulsed laser and c radiation of silica preforms and fibers was studied using electron spin resonance (ESR) spectroscopy. Exposure to radiation mainly generates E0 centers, with the same effectiveness in fibers and in preforms. The E'concentration in F-doped silica fibers is found to increase with UV energy fluence till a saturation value, consistently with a precursor conversion process. These results show the fluorine role in reducing the strained Si–O bonds thus improving the radiation hardness of silica, also after drawing process.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-06-01 |