Title
Photosensitivity In Germane-Silicate Sol-Gel Thin-Films
Abbreviated Journal Title
J. Non-Cryst. Solids
Keywords
PLANAR WAVE-GUIDES; OPTICAL FIBERS; ABSORPTION; CENTERS; WAVEGUIDES; GRATINGS; FILTERS; GLASS; Materials Science, Ceramics; Materials Science, Multidisciplinary
Abstract
Binary germano-silicate thin-film waveguides were produced by the sol-gel method with 10, 25 and 45 mol% GeO2. Post-deposition, reducing-atmosphere heat treatments were used to induce a variety of photosensitive defects in the films. The waveguides were subsequently exposed to guided counter-propagating beams at 488 nm to seed and grow permanent optical gratings. The mechanisms of defect formation and bleaching following exposure at 488 and at 248 nm are analyzed, and the role of these mechanisms in developing photosensitivity is elucidated. New photo-induced absorptive processes are observed and related to the optical behavior. Models for photosensitivity are reviewed in light of these observations.
Journal Title
Journal of Non-Crystalline Solids
Volume
179
Publication Date
1-1-1995
Document Type
Article; Proceedings Paper
Language
English
First Page
254
Last Page
259
WOS Identifier
ISSN
0022-3093
Recommended Citation
"Photosensitivity In Germane-Silicate Sol-Gel Thin-Films" (1995). Faculty Bibliography 1990s. 1179.
https://stars.library.ucf.edu/facultybib1990/1179
Comments
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