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

doi:10.1063/1.1466525

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

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	5666-5670
Number of pages	5
Journal	Journal of Applied Physics
Volume	91
Issue number	9
DOIs	https://doi.org/10.1063/1.1466525
Publication status	Published - 2002 May 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Color centers in LiCaAlF 6 single crystals and their suppression by doping",

abstract = "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.",

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

year = "2002",

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doi = "10.1063/1.1466525",

language = "English",

volume = "91",

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TY - JOUR

T1 - Color centers in LiCaAlF 6 single crystals and their suppression by doping

AU - Sato, Hiroki

AU - MacHida, Hiroshi

AU - Shimamura, Kiyoshi

AU - Bensalah, Amina

AU - Satonaga, Tomohiko

AU - Fukuda, Tsuguo

AU - Mihokova, Eva

AU - Dusek, Michal

AU - Nikl, Martin

AU - Vedda, Anna

PY - 2002/5/1

Y1 - 2002/5/1

N2 - 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.

AB - 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.

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JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 9

ER -

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

Abstract

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