From CuFeS2 to Ba6Cu2FeGe4S16: rational band gap engineering achieves large second-harmonic-generation together with high laser damage threshold

2019 ◽  
Vol 55 (96) ◽  
pp. 14510-14513 ◽  
Author(s):  
Wangzhu Cao ◽  
Dajiang Mei ◽  
Yi Yang ◽  
Yuanwang Wu ◽  
Lingyun Zhang ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Band Gap ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Band Gap Engineering ◽  
High Laser

From CuFeS2, the introduction of Ge leads to an increase in band gap. The ordered arrangement of NLO active units [GeS4] results in a strong SHG response. Finally, Ba6Cu2FeGe4S16 exhibits good NLO performance (SHG, 1.5 × AgGaSe2; LDT, 2 × AgGaSe2).

First-principles study of intrinsic point defects in MgSiAs2

2019 ◽  
Vol 21 (9) ◽  
pp. 5295-5304
Author(s):  
P. Tuo ◽  
B. C. Pan
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Point Defects ◽  
First Principles ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
High Laser

MgSiAs2 is a potential infrared-nonlinear optical (IR-NLO) material, due to its fine second harmonic generation (SHG) performance and high laser damage threshold (LDT).

Pb7F12Cl2: a promising infrared nonlinear optical material with high laser damage threshold

2019 ◽  
Vol 48 (36) ◽  
pp. 13529-13535 ◽  
Author(s):  
Qi Wu ◽  
Xian Liu ◽  
Fei Liang ◽  
Siran Xu ◽  
Hongbing Pi ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Nonlinear Optical Material ◽  
High Laser ◽  
First Time

This study reports, for the first time, the second-harmonic generation (SHG) property of Pb7F12Cl2 as a promising infrared nonlinear optical (NLO) material.

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