TY - JOUR
T1 - Bulk crystal growth of congruent MgO-doped LiNbO3 crystal with stoichiometric structure and its second-harmonic-generation properties
AU - Kimura, Hiromitsu
AU - Taniuchi, Tetsuo
AU - Iida, Shintaro
AU - Uda, Satoshi
N1 - Funding Information:
This work was supported by a Research Fellowship of the Japan Society for the Promotion of Science for young scientists.
PY - 2010/11/15
Y1 - 2010/11/15
N2 - 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.
AB - 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.
KW - A1. Congruent point
KW - A1. Segregation
KW - A1. Stoichiometric structure
KW - A2. Czochralski method
KW - A2. Growth from melt
KW - B1. Lithium niobate
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U2 - 10.1016/j.jcrysgro.2010.08.056
DO - 10.1016/j.jcrysgro.2010.08.056
M3 - Article
AN - SCOPUS:78049258222
SN - 0022-0248
VL - 312
SP - 3425
EP - 3427
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 23
ER -