A new family of quaternary thiosilicates SrA2SiS4 (A = Li, Na, Cu) as promising infrared nonlinear optical crystals

2020 ◽  
Vol 8 (5) ◽  
pp. 1762-1767 ◽  
Author(s):  
Ya Yang ◽  
Kui Wu ◽  
Xiaowen Wu ◽  
Bingbing Zhang ◽  
Lihua Gao

A new family of thiosilicates with balanced performances were verified as a promising research system for the exploration of IR NLO materials.

Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1809 ◽  
Author(s):  
Yingfeng Li ◽  
Mengqi Cui ◽  
Hejin Yan ◽  
Yangxin Yu ◽  
Meicheng Li ◽  
...  

Two nonlinear optical crystals, BaVO(IO3)5 and BaTaO(IO3)5, are designed by substituting Nb with V and Ta, respectively, in BaNbO(IO3)5, which is itself a recently synthesized infrared nonlinear optical (NLO) material. The designs of BaVO(IO3)5 and BaTaO(IO3)5 from BaNbO(IO3)5 are based on the following motivation: BaVO(IO3)5 should have a larger second-harmonic generation (SHG) coefficient than BaNbO(IO3)5, as V will result in a stronger second-order Jahn-Teller effect than Nb due to its smaller ion radius; at the same time, BaTaO(IO3)5 should have a larger laser-damage threshold, due to the fact that Ta has a smaller electronegativity leading to a greater band-gap. Established on reliable first-principle calculations, it is demonstrated that BaVO(IO3)5 has a much larger SHG coefficient than BaNbO(IO3)5 (23.42 × 10−9 vs. 18.66 × 10−9 esu); and BaTaO(IO3)5 has a significantly greater band-gap than BaNbO(IO3)5 (4.20 vs. 3.55 eV). Meanwhile, the absorption spectra and birefringences of both BaVO(IO3)5 and BaTaO(IO3)5 are acceptable for practice, suggesting that these two crystals can both be expected to be excellent infrared NLO materials.


2004 ◽  
Author(s):  
Ashok K. Batra ◽  
Tesfaye Gebre ◽  
K. Bhat ◽  
M. D. Aggarwal ◽  
Burl H. Peterson ◽  
...  

2006 ◽  
Vol 6 (8) ◽  
pp. 1876-1880 ◽  
Author(s):  
V. Kannan ◽  
R. Bairava Ganesh ◽  
P. Ramasamy

1998 ◽  
Author(s):  
Yicheng Wu ◽  
Jianguo Liu ◽  
Peizhen Fu ◽  
Junxing Wang ◽  
Fan Guo ◽  
...  

1995 ◽  
Vol 7 (1) ◽  
pp. 79-81 ◽  
Author(s):  
Younan Xia ◽  
Chuangtian Chen ◽  
Dingyuan Tang ◽  
Baichang Wu

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