Journal
OPTICS LETTERS
Volume 34, Issue 2, Pages 136-138Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.34.000136
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Funding
- National Natural Science Foundation of China (NSFC) [50672087]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT0651]
- Grants-in-Aid for Scientific Research [09J03481] Funding Source: KAKEN
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We report micromodification of Eu element distribution in a silicate glass with femtosecond laser irradiation. Elemental analysis shows that the content of Eu decreased at the focal point and increased in a ring-shaped region around the focal point, which indicates migration of Eu ions has been induced by the femtosecond laser irradiation. Confocal fluorescence spectra demonstrate that the fluorescence intensity of Eu3+ ions increased by 20% in the laser-induced, Eu-enriched, ring-shaped region compared with that for nonirradiated glass. The mechanism for the laser induced change in fluorescence properties of Eu3+ has been investigated. (C) 2009 Optical Society of America
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