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Proceedings Paper

Effect of doping on photosensitivity of sol-gel derived silica glasses
Author(s): Alexander Leyderman; Daniel Arcos; Charles Y. C. Lee
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Paper Abstract

Effect of doping on the UV optical absorption in silica sol gel glasses is studied through investigating the variation of structure and photochemical transformation of oxygen deficient centers. Optical absorption spectra of silica and lithium, aluminum germano-silica sol gel glasses reveal a change in the structure with changing the concentration of complements, specifically transformation of oxygen deficient centers and formation of new centers. Photosensitive response in germano-silicate glasses is enhanced by lithium ions, which act efficiently as charge compensators. Improvement on the change of refractive index is shown in samples containing lithium.

Paper Details

Date Published: 23 January 2002
PDF: 9 pages
Proc. SPIE 4459, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VII, and Optical Data Storage, (23 January 2002); doi: 10.1117/12.454040
Show Author Affiliations
Alexander Leyderman, Univ. of Puerto Rico/Mayaguez (United States)
Daniel Arcos, Univ. of Puerto Rico/Mayaguez (United States)
Charles Y. C. Lee, Air Force Office of Scientific Research (United States)


Published in SPIE Proceedings Vol. 4459:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VII, and Optical Data Storage
Shizhuo Yin; Francis T. S. Yu; Hans J. Coufal; Hans J. Coufal, Editor(s)

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