Titlebook: Defects in SiO2 and Related Dielectrics: Science and Technology; G. Pacchioni,L. Skuja,D. L. Griscom Book 2000 Springer Science+Business M

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https://doi.org/10.1007/978-3-319-57726-5cades silica-based glasses became an attractive object for extensive fundamental research. There are several reasons to explain the growing interest in silica. One of them is due to the fact that purity of silica has been dramatically improved by orders of magnitude to meet the requirement of fiber-

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Priti A. Shah MD,Valentina Robila MD, PhDdiated, and pressure-densified germanosilicate glass have been made. On the basis of results obtained, bistable oxygen vacancy is argued to be an adequate model for germanium oxygen-deficient centre with absorption band centred at 5.12 eV. Photobleaching of this defect is presumably accompanied by b

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Russell C. Kirks,Flavio G. Rochaecomposition of GODC plays a key role for the effect of photosensitiviy of germanosilicate glasses [.,.]. This effect involves absorption of light by GODC, photochemical modification of defects and even density of glass, and, as a result, the change of refractive index as high as 10.-10. [.,.]. The

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https://doi.org/10.1007/978-3-030-87189-5e (helium- or nitrogen-containing one). The fibres showed a higher photoinduced refractive index change and a higher efficiency of x. formation as compared to an ordinary germanosilicate fibre. The sintering process in nitrogen and helium atmospheres was shown to increase the concentration of german