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Radial gradient refractive-index glass rods prepared by a sol-gel method

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4 Author(s)
Shingyouchi, K. ; Hitachi Cable Ltd., Cable Research Laboratory, Hitachi, Japan ; Konishi, S. ; Susa, K. ; Matsuyama, I.

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.

Published in:

Electronics Letters  (Volume:22 ,  Issue: 2 )