Enhanced Ultraviolet Damage Resistance in Magnesium Doped Lithium Niobate Crystals through Zirconium Co-Doping

被引：18

作者：

Kong, Tengfei ^{[1
]}

Luo, Yi ^{[2
]}

Wang, Weiwei ^{[3
]}

Kong, Hanxiao ^{[4
]}

Fan, Zhiqin ^{[1
]}

Liu, Hongde ^{[5
,6
,7
]}

机构：

[1] Henan Univ Technol, Sch Sci, Zhengzhou 450001, Peoples R China

[2] Henan Univ, Minist Educ, Key Lab Special Funct Mat, Kaifeng 475004, Peoples R China

[3] Shijiazhuang Tiedao Univ, Dept Math & Phys, Shijiazhuang 050043, Hebei, Peoples R China

[4] Hebei Univ, Coll Chem & Environm Sci, Baoding 071002, Peoples R China

[5] Nankai Univ, MOE Key Lab Weak Light Nonlinear Photon, Tianjin 300071, Peoples R China

[6] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China

[7] Nankai Univ, TEDA Inst Appl Phys, Tianjin 300071, Peoples R China

来源：

MATERIALS | 2021年 / 14卷 / 04期

关键词：

lithium niobate; ultraviolet damage resistance; defects; first-principles calculations;

D O I：

10.3390/ma14041017

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

MgO-doped LiNbO3 (LN:Mg) is famous for its high resistance to optical damage, but this phenomenon only occurs in visible and infrared regions, and its photorefraction is not decreased but enhanced in ultraviolet region. Here we investigated a series of ZrO2 co-doped LN:Mg (LN:Mg,Zr) regarding their ultraviolet photorefractive properties. The optical damage resistance experiment indicated that the resistance against ultraviolet damage of LN:Mg was significantly enhanced with increased ZrO2 doping concentration. Moreover, first-principles calculations manifested that the enhancement of ultraviolet damage resistance for LN:Mg,Zr was mainly determined by both the increased band gap and the reduced ultraviolet photorefractive center O2-/-. So, LN:Mg,Zr crystals would become an excellent candidate for ultraviolet nonlinear optical material.

引用

页码：1 / 6

页数：6

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