Bulk crystal growth of congruent MgO-doped LiNbO3 crystal with stoichiometric structure and its second-harmonic-generation properties

Hiromitsu Kimura, Tetsuo Taniuchi, Shintaro Iida, Satoshi Uda

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


A new LiNbO3 bulk crystal has been grown by doping with MgO (cs-MgO:LN; Li2O:Nb2O5:MgO=45.30:50.00:4.70, (Li0.906Mg0.047VLi0.047)NbO 3), which successfully has the congruent point coinciding with the stoichiometric point. Its second-harmonic-generation (SHG) properties were evaluated. It was found that cs-MgO:LN has a much more homogeneous composition leading to uniform in-plane distribution of the non-critical phase-matching wavelength than the conventional LiNbO3 crystals such as congruent LiNbO3 (c-LN), stoichiometric LiNbO3 (s-LN), and MgO-doped congruent LiNbO3 (5MgO:LN). This homogeneity arose from the observation that none of the solute components including ionic species were segregated at the interface during growth. The SHG conversion efficiency of cs-MgO:LN is comparable to those of s-LN and 5MgO:LN.

Original languageEnglish
Pages (from-to)3425-3427
Number of pages3
JournalJournal of Crystal Growth
Issue number23
Publication statusPublished - 2010 Nov 15


  • A1. Congruent point
  • A1. Segregation
  • A1. Stoichiometric structure
  • A2. Czochralski method
  • A2. Growth from melt
  • B1. Lithium niobate

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry


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