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Proceedings Paper

Thermal poling and space charge dynamics including surface impurity injection in fused silica
Author(s): Thomas G. Alley; Steven R. J. Brueck; Michael Wiedenbeck
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Paper Abstract

The space charge region associated with the second-order nonlinearity in thermally poled fused silica was examined using secondary ion mass spectrometry (SIMS). Results for four samples are presented here: two flame-fused quartz samples (type-II fused silica), a higher purity flame-fused synthetic (type-III) fused silica, and a type-II fused silica treated with deuterated water. SIMS results show: (1) ionic depletion regions formed by migration of alkali ion impurities with different mobilities, (2) injection of surface alkali contaminants arising from the high surface fields, and (3) evidence of field injection as well as thermal diffusion of adsorbed surface water.

Paper Details

Date Published: 21 December 1998
PDF: 7 pages
Proc. SPIE 3542, Doped Fiber Devices II, (21 December 1998); doi: 10.1117/12.333766
Show Author Affiliations
Thomas G. Alley, Univ. of New Mexico (United States)
Steven R. J. Brueck, Univ. of New Mexico (United States)
Michael Wiedenbeck, Univ. of New Mexico (United States)

Published in SPIE Proceedings Vol. 3542:
Doped Fiber Devices II
Michel J. F. Digonnet; Francois Ouellette, Editor(s)

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