title: Micromodification of element distribution in glass using femtosecond laser irradiation.
abstract: 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 Eu(3+) 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 Eu(3+) has been investigated.
authors.affiliation: State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, China.
authors.forename: Yin
authors.initials: Y
authors.lastname: Liu
authors.forename: Masahiro
authors.initials: M
authors.lastname: Shimizu
authors.forename: Bin
authors.initials: B
authors.lastname: Zhu
authors.forename: Ye
authors.initials: Y
authors.lastname: Dai
authors.forename: Bin
authors.initials: B
authors.lastname: Qian
authors.forename: Jianrong
authors.initials: J
authors.lastname: Qiu
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Shimotsuma
authors.forename: Kiyokata
authors.initials: K
authors.lastname: Miura
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Hirao