Title :
r-GRIN TiO2-SiO2 glass rods prepared by a sol-gel method
Author :
Shingyouchi, K. ; Konishi, Satoshi ; Susa, K. ; Matsuyama, I.
Author_Institution :
Hitachi Cable Ltd., Cable Research Laboratory, Hitachi, Japan
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 :
gradient index optics; materials preparation; optical glass; optical workshop techniques; Ti concentration gradient; TiO2-SiO2; TiO2-SiO2 glass rods; acidic water leaching; jelly-like gels; low bulk densities; optical quality; radial gradient refractive index; sol-gel method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860759
