r-GRIN TiO 2 -SiO 2 glass rods prepared by a sol-gel method
- 9 October 1986
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 22 (21) , 1108-1110
- https://doi.org/10.1049/el:19860759
Abstract
Acidic water leaching of jelly-like gels (wet gels) prepared from silicon and titanium alkoxides gives rise to a titanium concentration gradient in the gels, which are then dried and densified by heating to yield radial gradient refractive index (r-GRIN) glass rods. Rods of good optical quality, showing little scattering of an He-Ne laser beam, can be made from the dry gels with low bulk densities.Keywords
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