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Applied Optics

Applied Optics


  • Vol. 31, Iss. 25 — Sep. 1, 1992
  • pp: 5225–5229

Control of the radial gradient-index profile by leaching of a gel

Niels Haun and Duncan T. Moore  »View Author Affiliations

Applied Optics, Vol. 31, Issue 25, pp. 5225-5229 (1992)

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A new method for controlling the shape and increasing the maximum index change in the radial gradient-index profile of sol-gel bodies is demonstrated. This is accomplished by modifying the relative rates of the intricate reactions responsible for forming the gradient. In practice the changes reported here are effected solely by varying the leaching conditions. Through the proper choice of a solution to arrest the leaching action, the index change can be maximized for a given shape to double that of the previous technique. A detailed composition analysis of the data reveals that dopant diffusion and precipitation are the dominant factors influencing the observed results.

© 1992 Optical Society of America

Original Manuscript: October 3, 1991
Published: September 1, 1992

Niels Haun and Duncan T. Moore, "Control of the radial gradient-index profile by leaching of a gel," Appl. Opt. 31, 5225-5229 (1992)

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  1. J. Crank, The Mathematics of Diffusion (Oxford U. Press, New York, 1979), p. 69.
  2. S. Konshi, K. Shingyouchi, A. Makishima, “r-Grin glass rods prepared by a sol gel method,” J. Non-Cryst. Solids 100, 511–513 (1988). [CrossRef]
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