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Proceedings Paper

Dehydroxylation of phosphate laser glass
Author(s): C. B. Thorsness; Tayyab I. Suratwala; Rusty A. Steele; Jack H. Campbell; Joseph S. Hayden; S. A. Pucilowski; Koji Suzuki
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Paper Abstract

Rates of dehydroxylation of two Nd-doped metaphosphate laser glasses (LG-770 and LHG-8) are measured and modeled. Glass melts ranging in size from 100 g to 2.8 kg were bubbled with O2 containing various H2O partial pressures (PH(subscript 2O)) and with O2/Cl2 mixtures at temperatures ranging from 925 - 1300 degree(s)C. The OH content in the glass was measured by monitoring the OH absorption at 3.333 micrometers at various bubbling times. The OH removal by inert gas bubbling (e.g. O2 bubbling) is governed by the transport (diffusion) of OH to the glass liquid/vapor interface and by the chemical equilibrium between OH at the surface and H2O in the gas phase. The equilibrium OH content in glass melts bubbled with O2 containing different PH(subscript 2O) varies as PH(subscript 2O)1/2.

Paper Details

Date Published: 25 October 2000
PDF: 20 pages
Proc. SPIE 4102, Inorganic Optical Materials II, (25 October 2000); doi: 10.1117/12.405283
Show Author Affiliations
C. B. Thorsness, Lawrence Livermore National Lab. (United States)
Tayyab I. Suratwala, Lawrence Livermore National Lab. (United States)
Rusty A. Steele, Lawrence Livermore National Lab. (United States)
Jack H. Campbell, Lawrence Livermore National Lab. (United States)
Joseph S. Hayden, Schott Glass Technologies, Inc. (United States)
S. A. Pucilowski, Schott Glass Technologies, Inc. (United States)
Koji Suzuki, Hoya Corp., USA (United States)

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

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