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

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1638-1642
Number of pages5
JournalOptical Materials
Volume33
Issue number11
DOIs
Publication statusPublished - 2011 Sep

Keywords

  • Fibers
  • Micro-pulling down
  • Monophase field

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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