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Proceedings Paper

Effect of water content on neodymium-doped fluorozirconate and fluoroaluminate glasses
Author(s): Alexis Gale Clare; Adam B. Schrader; Scott T. Misture; Scott Speakman; Kathleen A. Richardson
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Paper Abstract

Fluorozirconate and fluoroaluminate glasses doped with 0, 1.5 and 3.0 mol% NdF3 were made under a variety of processing conditions ranging from dry (less than 5 ppm H2O) and oxygen- free using ultra-pure raw materials to an open laboratory furnace with less pure raw materials. Even under the optimum dryness and purity conditions 20 g batches of fluoroaluminate glass could not be made crystal-free whereas fluorozirconate glass could. However a blue shift in the 4I9/2-4I13/2 fluorescence band was noted for the fluoroaluminate glass compared to the fluorozirconate as had been reported in other publications along with a blue shift in the same band for glasses made under drier conditions. The environment around the neodymium was examined using EXAFS with the Nd LII edge for the glasses and dry and hydrated NdF3. Hydrated NdF3 has then first peak in the EXAFS Fourier transform at shorter distance with a broader FWHM. Fluoroaluminate glasses exhibited the same trends when made in more hydrated conditions. This would be consistent with at least partial coordination of the Nd by OH.

Paper Details

Date Published: 25 October 2000
PDF: 9 pages
Proc. SPIE 4102, Inorganic Optical Materials II, (25 October 2000); doi: 10.1117/12.405284
Show Author Affiliations
Alexis Gale Clare, New York State College of Ceramics/Alfred Univ. (United States)
Adam B. Schrader, Corning Inc. (United States)
Scott T. Misture, New York State College of Ceramics/Alfred Univ. (United States)
Scott Speakman, New York State College of Ceramics/Alfred Univ. (United States)
Kathleen A. Richardson, CREOL/Univ. of Central Florida (United States)

Published in SPIE Proceedings Vol. 4102:
Inorganic Optical Materials II
Alexander J. Marker III; Eugene G. Arthurs, Editor(s)

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