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https://hdl.handle.net/2440/38019
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Type: | Journal article |
Title: | Effect of Tb3⁺ ions on X-ray-induced defect formation in phosphate containing glasses |
Other Titles: | Effect of Tb3(+) ions on X-ray-induced defect formation in phosphate containing glasses |
Author: | Ebendorff-Heidepriem, H. Ehrt, D. |
Citation: | Optical Materials, 2002; 18(4):419-430 |
Publisher: | Elsevier Science BV |
Issue Date: | 2002 |
ISSN: | 0925-3467 1873-1252 |
Statement of Responsibility: | H. Ebendorff-Heidepriem and D. Ehrt |
Abstract: | The study of radiation-induced defect formation in glasses is of growing interest for applications in optics and photonics. The influence of Tb3+ ions on X-ray-induced defects has been examined in glasses with different phosphate contents. The defects have been characterized by optical absorption and ESR spectroscopy. (Tb3+)+ ions are formed by X-ray irradiation. They exhibit a broad charge transfer band at 370 nm. The formation of (Tb3+)+ hole centres suppresses the formation of intrinsic phosphate-related hole centres, absorbing in the visible region. PO3 defects absorbing in the ultraviolet region contribute mainly to the electron centres corresponding to the (Tb3+)+ hole centres. Immediately after X-ray irradiation, 5-10% of the Tb3+ ions have been oxidized. The amount of (Tb3+)+ ions increases with increasing phosphate content. The stability of the (Tb3+)+ ions at room temperature depends on glass composition and melting conditions. © 2002 Elsevier Science B.V. All rights reserved. |
Keywords: | Terbium ions Phosphate glasses Irradiation Defects Optical absorption Electron spin resonance |
Description: | Copyright © 2002 Elsevier Science B.V. All rights reserved. |
DOI: | 10.1016/S0925-3467(01)00182-3 |
Description (link): | http://www.elsevier.com/wps/find/journaldescription.cws_home/522512/description#description |
Published version: | http://dx.doi.org/10.1016/s0925-3467(01)00182-3 |
Appears in Collections: | Aurora harvest Physics publications |
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