Monophase domain, fibers single crystals grown by the micro-pulling down technique and optical characterisation of LiGd1-xYb x(WO4)2

B. Rekik; M. Derbal; L. Guerbous; D. Ouadjaout; A. Nehari; E. Romeo; A. Brenier; A. Yoshikawa; K. Lebbou

doi:10.1016/j.optmat.2011.04.028

Monophase domain, fibers single crystals grown by the micro-pulling down technique and optical characterisation of LiGd_1-xYb _x(WO₄)₂

B. Rekik, M. Derbal, L. Guerbous, D. Ouadjaout, A. Nehari, E. Romeo, A. Brenier, A. Yoshikawa, K. Lebbou

IMR - Materials Design Division

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

6 Citations (Scopus)

Abstract

We have determined the single phase domain of LiGd_1- _xYb_x(WO₄)₂. The lattices parameters decrease as a function of Yb³⁺ substitution in Gd³⁺ sites. Transparent LiGd_1-xYb_x(WO₄) ₂ fibers single crystals were successfully grown by the micro-pulling down technique (μ-PD). The Yb³⁺-doped LiGd(WO₄) ₂ fibers single crystals have been pulled under stationary stable growth conditions corresponding to flat crystallization interface with meniscus length equal to 120 μm. The fibers diameters varied from 0.5 to 1 mm depending on the capillary die diameter, pulling rate and the molten zone temperature. Fibers single crystals free of defects are observed for Ytterbium concentration in the melt up to 5 at%. Above this limit, inclusions and cracks appear and the optical quality of the fibers were deteriorated. The emission spectra of Yb³⁺-doped LiGd(WO₄)₂ were investigated.

Original language	English
Pages (from-to)	1638-1642
Number of pages	5
Journal	Optical Materials
Volume	33
Issue number	11
DOIs	https://doi.org/10.1016/j.optmat.2011.04.028
Publication status	Published - 2011 Sept

Keywords

Fibers
Micro-pulling down
Monophase field

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10.1016/j.optmat.2011.04.028

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title = "Monophase domain, fibers single crystals grown by the micro-pulling down technique and optical characterisation of LiGd1-xYb x(WO4)2",

abstract = "We have determined the single phase domain of LiGd1- xYbx(WO4)2. The lattices parameters decrease as a function of Yb3+ substitution in Gd3+ sites. Transparent LiGd1-xYbx(WO4) 2 fibers single crystals were successfully grown by the micro-pulling down technique (μ-PD). The Yb3+-doped LiGd(WO4) 2 fibers single crystals have been pulled under stationary stable growth conditions corresponding to flat crystallization interface with meniscus length equal to 120 μm. The fibers diameters varied from 0.5 to 1 mm depending on the capillary die diameter, pulling rate and the molten zone temperature. Fibers single crystals free of defects are observed for Ytterbium concentration in the melt up to 5 at%. Above this limit, inclusions and cracks appear and the optical quality of the fibers were deteriorated. The emission spectra of Yb3+-doped LiGd(WO4)2 were investigated.",

keywords = "Fibers, Micro-pulling down, Monophase field",

author = "B. Rekik and M. Derbal and L. Guerbous and D. Ouadjaout and A. Nehari and E. Romeo and A. Brenier and A. Yoshikawa and K. Lebbou",

year = "2011",

month = sep,

doi = "10.1016/j.optmat.2011.04.028",

language = "English",

volume = "33",

pages = "1638--1642",

journal = "Optical Materials",

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T1 - Monophase domain, fibers single crystals grown by the micro-pulling down technique and optical characterisation of LiGd1-xYb x(WO4)2

AU - Rekik, B.

AU - Derbal, M.

AU - Guerbous, L.

AU - Ouadjaout, D.

AU - Nehari, A.

AU - Romeo, E.

AU - Brenier, A.

AU - Yoshikawa, A.

AU - Lebbou, K.

PY - 2011/9

Y1 - 2011/9

N2 - We have determined the single phase domain of LiGd1- xYbx(WO4)2. The lattices parameters decrease as a function of Yb3+ substitution in Gd3+ sites. Transparent LiGd1-xYbx(WO4) 2 fibers single crystals were successfully grown by the micro-pulling down technique (μ-PD). The Yb3+-doped LiGd(WO4) 2 fibers single crystals have been pulled under stationary stable growth conditions corresponding to flat crystallization interface with meniscus length equal to 120 μm. The fibers diameters varied from 0.5 to 1 mm depending on the capillary die diameter, pulling rate and the molten zone temperature. Fibers single crystals free of defects are observed for Ytterbium concentration in the melt up to 5 at%. Above this limit, inclusions and cracks appear and the optical quality of the fibers were deteriorated. The emission spectra of Yb3+-doped LiGd(WO4)2 were investigated.

AB - We have determined the single phase domain of LiGd1- xYbx(WO4)2. The lattices parameters decrease as a function of Yb3+ substitution in Gd3+ sites. Transparent LiGd1-xYbx(WO4) 2 fibers single crystals were successfully grown by the micro-pulling down technique (μ-PD). The Yb3+-doped LiGd(WO4) 2 fibers single crystals have been pulled under stationary stable growth conditions corresponding to flat crystallization interface with meniscus length equal to 120 μm. The fibers diameters varied from 0.5 to 1 mm depending on the capillary die diameter, pulling rate and the molten zone temperature. Fibers single crystals free of defects are observed for Ytterbium concentration in the melt up to 5 at%. Above this limit, inclusions and cracks appear and the optical quality of the fibers were deteriorated. The emission spectra of Yb3+-doped LiGd(WO4)2 were investigated.

KW - Fibers

KW - Micro-pulling down

KW - Monophase field

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SN - 0925-3467

VL - 33

SP - 1638

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JO - Optical Materials

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IS - 11

ER -

Monophase domain, fibers single crystals grown by the micro-pulling down technique and optical characterisation of LiGd_1-xYb _x(WO₄)₂

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Keywords

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