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Pb7F12Br2: A Potential Mid-IR Nonlinear Optical Material with High Laser Damage Threshold
Author NameAffiliationE-mail
WANG Gang College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China  
LIU Hong-Ming College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China  
JIANG Xing-Xing Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China  
YANG Lei Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China  
LIN Zhe-Shuai Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China xgchen@whu.edu.cn 
HU Zhang-Gui Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China  
MENG Xiang-Gao College of Chemistry, Central China Normal University, Wuhan 430079, China  
CHEN Xing-Guo College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China zslin@mail.ipc.ac.cn 
QIN Jin-Gui College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China  
Abstract: A Pb-containing mixed halide, Pb7F12Br2, was synthesized and confirmed by single X-ray diffraction. Its nonlinear optical (NLO) and related properties have been studied systematically for the first time. It shows much wide energy band gap of 4.32 eV with large laser damage threshold (LDT) value of 25 MW·cm-2 that is higher than that of the currently commercialized infrared (IR) NLO material AgGaS2 measured at the same conditions (<5.2 MW·cm-2). Second harmonic generation (SHG) effect test shows that its powders exhibit phase-matching SHG response of about 1.5 times as strong as that of KDP (KH2PO4). Its powders also show good transparence in the region of 0.3~14 μm and exhibit excellent thermal stability with the decomposition temperature up to 650 ℃. Thus, it shows good comprehensive properties.
Keywords: nonlinear optical material  laser damage threshold  Pb-containing mixed halide  mid-infrared region
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WANG Gang,LIU Hong-Ming,JIANG Xing-Xing,YANG Lei,LIN Zhe-Shuai,HU Zhang-Gui,MENG Xiang-Gao,CHEN Xing-Guo,QIN Jin-Gui.Pb7F12Br2: A Potential Mid-IR Nonlinear Optical Material with High Laser Damage Threshold[J].Chinese Journal of Inorganic Chemistry,2017,33(11):2117-2123.
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Chinese Journal of Inorganic Chemistry