Red photoluminescence and optical absorption in hydrogen-treated GeO 2-SiO2 sol-gel-derived planar waveguides

K. D. Simmons; B. G. Potter; G. I. Stegeman

doi:10.1063/1.111566

Red photoluminescence and optical absorption in hydrogen-treated GeO ₂-SiO₂ sol-gel-derived planar waveguides

K. D. Simmons, B. G. Potter, G. I. Stegeman

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We report the effects of post-deposition, reducing atmosphere heat treatment on the optical absorption, and photoluminescence response of 45 GeO₂-55 SiO₂ thin films produced using the sol-gel process. With increasing heat treatment, a linear increase in the 242 nm absorption peak (associated with oxygen-deficient germania centers) is found to contrast a reduction in the intensity of red photoluminescence (attributed to hydrogen centers in the glass structure). These results are discussed in terms of the photosensitive response of these materials.

Original language	English (US)
Pages (from-to)	2537-2539
Number of pages	3
Journal	Applied Physics Letters
Volume	64
Issue number	19
DOIs	https://doi.org/10.1063/1.111566
State	Published - 1994
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "We report the effects of post-deposition, reducing atmosphere heat treatment on the optical absorption, and photoluminescence response of 45 GeO2-55 SiO2 thin films produced using the sol-gel process. With increasing heat treatment, a linear increase in the 242 nm absorption peak (associated with oxygen-deficient germania centers) is found to contrast a reduction in the intensity of red photoluminescence (attributed to hydrogen centers in the glass structure). These results are discussed in terms of the photosensitive response of these materials.",

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year = "1994",

doi = "10.1063/1.111566",

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pages = "2537--2539",

journal = "Applied Physics Letters",

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AU - Potter, B. G.

AU - Stegeman, G. I.

PY - 1994

Y1 - 1994

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AB - We report the effects of post-deposition, reducing atmosphere heat treatment on the optical absorption, and photoluminescence response of 45 GeO2-55 SiO2 thin films produced using the sol-gel process. With increasing heat treatment, a linear increase in the 242 nm absorption peak (associated with oxygen-deficient germania centers) is found to contrast a reduction in the intensity of red photoluminescence (attributed to hydrogen centers in the glass structure). These results are discussed in terms of the photosensitive response of these materials.

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Red photoluminescence and optical absorption in hydrogen-treated GeO ₂-SiO₂ sol-gel-derived planar waveguides

Abstract

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