Crystal growth and VUV luminescence properties of Er3+- and Tm3+-doped LiCaAlF6 for detectors

Akira Yoshikawa; Takayuki Yanagida; Yuui Yokota; Akihiro Yamaji; Yutaka Fujimoto; Jan Pejchal; Valery I. Chani; Noriaki Kawaguchi; Sumito Ishizu; Kentaro Fukuda; Toshihisa Suyama; Martin Nikl

doi:10.1016/j.optmat.2010.04.032

Crystal growth and VUV luminescence properties of Er³⁺- and Tm³⁺-doped LiCaAlF₆ for detectors

Akira Yoshikawa, Takayuki Yanagida, Yuui Yokota, Akihiro Yamaji, Yutaka Fujimoto, Jan Pejchal, Valery I. Chani, Noriaki Kawaguchi, Sumito Ishizu, Kentaro Fukuda, Toshihisa Suyama, Martin Nikl

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

30 Citations (Scopus)

Abstract

Er- and Tm-doped LiCaAlF₆ (LiCAF) single crystals were grown by the micro-pulling-down (μ-PD) method. The crystals were transparent, 2.0 mm in diameter and 30-40 mm in length. Neither visible inclusions nor cracks were observed. Photoluminescence spectra of Er- and Tm-doped LiCAF were measured. Broad band emission due to the Tm³⁺ and Er³⁺ 5d-4f transitions dominated the spectrum at 163.5 and 165 nm respectively. These emissions had shortest wavelength among the fluoride crystal hosts ever reported at room temperature experiments. The vacuum ultraviolet (VUV) luminescent crystals are attractive as scintillators for radiation detectors, which employ photosensitive gases (such as TMAE or TEA) or photocathodes (such as CsI) sensitive mostly to VUV photons.

Original language	English
Pages (from-to)	845-849
Number of pages	5
Journal	Optical Materials
Volume	32
Issue number	9
DOIs	https://doi.org/10.1016/j.optmat.2010.04.032
Publication status	Published - 2010 Jul

Keywords

Crystal growth from the melt
Fluoride
Single crystal
Vuv emission

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Computer Science(all)
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

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10.1016/j.optmat.2010.04.032

Cite this

Crystal growth and VUV luminescence properties of Er³⁺- and Tm³⁺-doped LiCaAlF₆ for detectors. / Yoshikawa, Akira; Yanagida, Takayuki; Yokota, Yuui ; Yamaji, Akihiro ; Fujimoto, Yutaka; Pejchal, Jan; Chani, Valery I.; Kawaguchi, Noriaki; Ishizu, Sumito; Fukuda, Kentaro; Suyama, Toshihisa; Nikl, Martin.

In: Optical Materials, Vol. 32, No. 9, 07.2010, p. 845-849.

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

Yoshikawa, Akira ; Yanagida, Takayuki ; Yokota, Yuui ; Yamaji, Akihiro ; Fujimoto, Yutaka ; Pejchal, Jan ; Chani, Valery I. ; Kawaguchi, Noriaki ; Ishizu, Sumito ; Fukuda, Kentaro ; Suyama, Toshihisa ; Nikl, Martin. / Crystal growth and VUV luminescence properties of Er³⁺- and Tm³⁺-doped LiCaAlF₆ for detectors. In: Optical Materials. 2010 ; Vol. 32, No. 9. pp. 845-849.

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title = "Crystal growth and VUV luminescence properties of Er3+- and Tm3+-doped LiCaAlF6 for detectors",

abstract = "Er- and Tm-doped LiCaAlF6 (LiCAF) single crystals were grown by the micro-pulling-down (μ-PD) method. The crystals were transparent, 2.0 mm in diameter and 30-40 mm in length. Neither visible inclusions nor cracks were observed. Photoluminescence spectra of Er- and Tm-doped LiCAF were measured. Broad band emission due to the Tm3+ and Er3+ 5d-4f transitions dominated the spectrum at 163.5 and 165 nm respectively. These emissions had shortest wavelength among the fluoride crystal hosts ever reported at room temperature experiments. The vacuum ultraviolet (VUV) luminescent crystals are attractive as scintillators for radiation detectors, which employ photosensitive gases (such as TMAE or TEA) or photocathodes (such as CsI) sensitive mostly to VUV photons.",

keywords = "Crystal growth from the melt, Fluoride, Single crystal, Vuv emission",

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AU - Fujimoto, Yutaka

AU - Pejchal, Jan

AU - Chani, Valery I.

AU - Kawaguchi, Noriaki

AU - Ishizu, Sumito

AU - Fukuda, Kentaro

AU - Suyama, Toshihisa

AU - Nikl, Martin

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N2 - Er- and Tm-doped LiCaAlF6 (LiCAF) single crystals were grown by the micro-pulling-down (μ-PD) method. The crystals were transparent, 2.0 mm in diameter and 30-40 mm in length. Neither visible inclusions nor cracks were observed. Photoluminescence spectra of Er- and Tm-doped LiCAF were measured. Broad band emission due to the Tm3+ and Er3+ 5d-4f transitions dominated the spectrum at 163.5 and 165 nm respectively. These emissions had shortest wavelength among the fluoride crystal hosts ever reported at room temperature experiments. The vacuum ultraviolet (VUV) luminescent crystals are attractive as scintillators for radiation detectors, which employ photosensitive gases (such as TMAE or TEA) or photocathodes (such as CsI) sensitive mostly to VUV photons.

AB - Er- and Tm-doped LiCaAlF6 (LiCAF) single crystals were grown by the micro-pulling-down (μ-PD) method. The crystals were transparent, 2.0 mm in diameter and 30-40 mm in length. Neither visible inclusions nor cracks were observed. Photoluminescence spectra of Er- and Tm-doped LiCAF were measured. Broad band emission due to the Tm3+ and Er3+ 5d-4f transitions dominated the spectrum at 163.5 and 165 nm respectively. These emissions had shortest wavelength among the fluoride crystal hosts ever reported at room temperature experiments. The vacuum ultraviolet (VUV) luminescent crystals are attractive as scintillators for radiation detectors, which employ photosensitive gases (such as TMAE or TEA) or photocathodes (such as CsI) sensitive mostly to VUV photons.

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