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Dopant Occupancy and UV–Vis–NIR Spectroscopy of Sc:Yb:Tm:LiNbO3 in the 300–3000 nm Wavelength Range

  • Li Dai*
  • , Yuning Wang
  • , Ruirun Chen
  • , Shunxiang Yang
  • , Xianbo Han
  • , Chunrui Liu
  • , Yu Shao
  • *Corresponding author for this work
  • Harbin University of Science and Technology
  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

A series of Sc:Yb:Tm:LiNbO3 crystals with variable Sc3+ (0, 1, 2, and 3 mol%) concentration are grown by the Czochralski method. The effective distribution coefficients of Sc3+, Yb3+, and Tm3+ ions in the Sc:Yb:Tm:LiNbO3 crystals are determined by inductively coupled plasma atomic emission spectrometer. Sc3+ ions distribute uniformly in crystals when Sc3+ concentration reaches up to 3 mol%. The influence of Sc3+ concentration on the dopant occupancy and defect structure of Sc:Yb:Tm:LiNbO3 crystals is investigated by IR transmission spectra. Threshold concentration of Sc3+ ions in Sc:Yb:Tm:LiNbO3 crystals is nearly 3 mol%. By analyzing UV–vis–NIR absorption spectra, absorption property of Sc:Yb:Tm:LiNbO3 crystals is improved by doping Sc3+ ions. Additionally, the Sc:Yb:Tm:LiNbO3 crystals can be pumped by commercially available high power AlGaAs LDs.

Original languageEnglish
Article number1900176
JournalCrystal Research and Technology
Volume55
Issue number6
DOIs
StatePublished - 1 Jun 2020
Externally publishedYes

Keywords

  • Sc:Yb:Tm:LiNbO crystals
  • UV–vis–NIR
  • distribution coefficient
  • dopant occupancy

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