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Nonvolatile photorefractive properties in triply doped stoichiometric Mg:Fe:Mn:LiTaO3 crystals

  • Ting Sun
  • , Xiao Dong Zhang*
  • , Liang Sun
  • , Rui Wang
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Harbin Institute of Technology
  • School of Chemistry and Chemical Engineering, Harbin Institute of Technology
  • Yibin University

Research output: Contribution to journalArticlepeer-review

Abstract

We have grown triply doped Mg:Fe:Mn:LiTaO3 crystals with near stoichiometry using the top seeded solution growth technique. The defect structure was investigated by infrared absorption spectra and Curie temperature. Using a blue laser as the source, excellent photorefractive properties were obtained. Nonvolatile holographic storage properties were investigated using the dual wavelength technique. We got a very high fixed diffraction efficiency and nonvolatile holographic storage sensitivity. The blue light has more than enough energy to excite holes of deep (Mn) and shallow (Fe) trap centers with the same phase, which enhance dramatically the blue photorefractive properties and the nonvolatile holographic storage. Mg2+ ion is no longer damage resistant at blue laser, but enhances photorefractive characteristics.

Original languageEnglish
Article number014204
JournalChinese Physics B
Volume23
Issue number1
DOIs
StatePublished - Jan 2014
Externally publishedYes

Keywords

  • LiTaO crystal
  • blue photorefraction
  • nonvolatile holography
  • photorefractive material

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