r-GRIN TiO2-SiO2 glass rods prepared by a sol-gel method

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r-GRIN TiO2-SiO2 glass rods prepared by a sol-gel method

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© The Institution of Electrical Engineers
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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.

Inspec keywords: materials preparation; optical glass; gradient index optics; optical workshop techniques

Other keywords: jelly-like gels; TiO2-SiO2; optical quality; sol-gel method; Ti concentration gradient; TiO2-SiO2 glass rods; acidic water leaching; radial gradient refractive index; low bulk densities

Subjects: Optical glass; Preparation of glasses; Optical fabrication, surface grinding

References

    1. 1)
      • B.E. Yoldas . Monolithic glass formation by chemical polymerization. J. Mater. Sci. , 1843 - 1849
    2. 2)
      • K. Shingyouchi , K. Konishi , K. Susa , I. Matsuyama . Radial gradient refractive-index glass rods prepared by a sol-gel method. Electron. Lett. , 99 - 100
    3. 3)
      • S. Wallace , L.L. Hench . The processing and characterization of DCCA modified gel-derived silica. Mat. Res. Soc. Symp. Proc. , 47 - 52
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