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Float zone growth of Dy:GdVO4 single crystals for potential use in solid-state yellow lasers

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Title: Float zone growth of Dy:GdVO4 single crystals for potential use in solid-state yellow lasers
Authors: Higuchi, Mikio Browse this author →KAKEN DB
Sasaki, Ryo Browse this author
Takahashi, Junichi Browse this author
Keywords: Floating zone technique
Solid-state lasers
Issue Date: 15-Oct-2009
Publisher: Elsevier B.V.
Journal Title: Journal of Crystal Growth
Volume: 311
Issue: 21
Start Page: 4549
End Page: 4552
Publisher DOI: 10.1016/j.jcrysgro.2009.08.028
Abstract: Single crystals of dysprosium-doped gadolinium orthovanadate (Dy:GdVO4) were successfully grown by the floating zone method and their fluorescence properties were investigated. The as-grown crystals did not contain any macroscopic defects such as cracks and inclusions for any Dy-concentration of up to 4 at%. Every crystal showed optical homogeneity under observation with a polarizing microscope; that is, no low-angle grain boundaries and growth striations were detected. In the visible region two distinct, fluorescence bands were observed around 480 and 575 nm, corresponding to F-4(9/2) → H-6(15/2) and F-4(9/2) → H-6(13/2) transitions, respectively. The excitation spectrum for the emission of 573 nm indicates the possibility to use a commercially available laser diode of 450 nm as a pumping source for solid-state yellow laser.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 樋口 幹雄

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