Title :
Radial gradient refractive-index 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 :
An ivestigation has been undertaken for preparation of radial gradient refractive-index (r-GRIN) glass rods by a sol-gel method from metal alkoxides. Water leaching of jelly-like gels (wet gels) prepared from silicon and germanium alkoxides gives rise to a germanium concentration gradient in the gels, which are then densificated by heating to yield r-GRIN glass rods.
Keywords :
gradient index optics; materials preparation; optical glass; optical workshop techniques; GRIN glass rods; Ge alkoxides; Ge concentration gradient; Si alkoxides; densification; metal alkoxides; radial gradient refractive index glass rods; sol-gel method; water leaching; wet gels;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860069
