Color centers in LiCaAlF 6 single crystals and their suppression by doping

Hiroki Sato, Hiroshi MacHida, Kiyoshi Shimamura, Amina Bensalah, Tomohiko Satonaga, Tsuguo Fukuda, Eva Mihokova, Michal Dusek, Martin Nikl, Anna Vedda

研究成果: Article査読

25 被引用数 (Scopus)

抄録

LiCaAlF 6 (LiCAF) single crystals pure and doped with MgF 2 and BaF 2 were successfully grown by the Czochralski technique. Optical absorption measurements in the UV/Visible spectral regions following x-ray irradiation (radiation induced absorption) were performed in order to investigate the radiation damage of the crystals. The F-center absorption band at 262 nm is the dominating induced absorption feature. The amplitude of the F-absorption band is suppressed by more than a factor of 3 in Mg-doped LiCAF compared to undoped, while for Ba-doped LiCAF, almost no variation is obtained. In Mg-doped crystals the optimum doping concentration is of about 0.2 mol% of MgF 2 in the melt.

本文言語English
ページ(範囲)5666-5670
ページ数5
ジャーナルJournal of Applied Physics
91
9
DOI
出版ステータスPublished - 2002 5 1
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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