The role of doping technology in the formation of nonlinear optical properties of LiNbO3:Mg:B crystals

被引：1
|
作者：
Kadetova, A. V. [1 ]
Tokko, O. V. [1 ]
Prusskii, A. I. [1 ]
Smirnov, M. V. [2 ]
Palatnikov, M. N. [2 ]
Biryukova, I. V. [2 ]
机构：
[1] Petrozavodsk State Univ, Petrozavodsk, Russia
[2] Russian Acad Sci, Tananaev Inst Chem, Subdiv Fed Res Ctr, Kola Sci Ctr,ICT KSC RAS, Moscow, Russia
来源：
OPTICAL MATERIALS | 2024年 / 156卷
基金：
俄罗斯科学基金会;
关键词：
Lithium niobate; Doping technology; Double doping; Structural defects; Nonlinear optical properties; BOND-CHARGE CALCULATION; LITHIUM-NIOBATE; 2ND-HARMONIC GENERATION; SUSCEPTIBILITIES; DIFFRACTION;
D O I：
10.1016/j.optmat.2024.115921
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nonlinear optical coefficients dij were calculated quantitatively for two series of LiNbO3 crystals double-doped with Mg and nonmetallic B obtained by the methods of the solid-phase (SP) synthesis and homogeneous introduction (HG) of impurities. The addition of boron and the presence of MgLi extrinsic defects increased the efficiency of second-harmonic conversion. Homogeneously doped crystals have been found to be the most suitable medium for second-harmonic generation (SHG). The high value of the total nonlinear optical coefficient d33 (-70.742(5) x 10-9 cm/statV) and the extremely low photorefractive response make the LiNbO3:Mg:B crystal (4.2 mol%) obtained by the HG method promising for use in nonlinear optics.
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页数：6
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