scholarly journals A2SrMIVS4 (A = Li, Na; MIV = Ge, Sn) concurrently exhibiting wide bandgaps and good nonlinear optical responses as new potential infrared nonlinear optical materials

2019 ◽  
Vol 10 (14) ◽  
pp. 3963-3968 ◽  
Author(s):  
Kui Wu ◽  
Yu Chu ◽  
Zhihua Yang ◽  
Shilie Pan

A series of A2SrMIVS4 compounds concurrently exhibiting wide bandgaps and good NLO responses were proven as promising IR NLO materials.

2020 ◽  
Vol 49 (16) ◽  
pp. 5276-5282
Author(s):  
Fangfang He ◽  
Yuwei Ge ◽  
Xiaoyu Zhao ◽  
Jing He ◽  
Ling Huang ◽  
...  

New KTP-type antimony(iii)-based NLO materials with sharply enlarged bandgaps were developed through two-stage evolution from phosphate to sulfate.


2020 ◽  
Vol 49 (40) ◽  
pp. 14046-14051
Author(s):  
Huanke Zhao ◽  
Pifu Gong ◽  
Xinyuan Zhang ◽  
Zheshuai Lin ◽  
Zhanggui Hu ◽  
...  

Two new isomorphic NLO materials of Pb2GaF2(SeO3)2Br (4.5 × KDP) and Pb2NbO2(SeO3)2Br (1.4 × KDP) were successfully designed and synthesized.


2020 ◽  
Vol 8 (37) ◽  
pp. 12993-13000
Author(s):  
Zitong Liu ◽  
Jibin Sun ◽  
Chaoxian Yan ◽  
Zheng Xie ◽  
Guanxin Zhang ◽  
...  

Diketopyrrolopyrrole based donor–acceptor π-conjugated copolymers with smaller bandgaps exhibit more excellent broadband (532 and 1064 nm) nonlinear optical responses.


2020 ◽  
Vol 56 (89) ◽  
pp. 13689-13701
Author(s):  
Hongkun Liu ◽  
Bingbing Zhang ◽  
Ying Wang

This feature article highlights the strategies used to design UV/DUV NLO materials based on benzene-like π-conjugated units.


2020 ◽  
Vol 56 (78) ◽  
pp. 11565-11576
Author(s):  
Guangmao Li ◽  
Zhihua Yang ◽  
Junjie Li ◽  
Shilie Pan

The AI2BIICIVDVI4 family as promising infrared NLO materials is summarized. The influence of each site substitutions on the structures and properties is systematically analyzed.


1999 ◽  
Vol 561 ◽  
Author(s):  
Eric M. Breitung ◽  
Robert J. McMahon

ABSTRACTTuning the degree of bond-length alternation in organic nonlinear optical materials is a powerful paradigm for the design of organic materials with large molecular hyperpolarizabilities (β). Several research groups have employed this paradigm in the design and synthesis of NLO materials incorporating donor-acceptor polyenes. Increased bond-length alternation in polyenes leads to decreased barriers to rotation about C=C bonds and, hence, increased conformational flexibility. Since the degree of bond-length alternation is solvent dependent, so is the degree of conformational flexibility. In an effort to probe the influence of conformational flexibility on NLO response, we synthesized a series of simple donor-acceptor polyenes that are either conformationally flexible (la, 2a, 3a) or rigid (1b, 2b, 3b). For each pair of molecules ZINDO sum-over-states calculations predict a larger value of βμ, for the conformationally flexible isomer, but EFISH measurements (CHCl3) display mixed results. Various explanations for this behavior will be considered.


2018 ◽  
Vol 9 (26) ◽  
pp. 5700-5708 ◽  
Author(s):  
Shu-Fang Li ◽  
Xiao-Ming Jiang ◽  
Yu-Hang Fan ◽  
Bin-Wen Liu ◽  
Hui-Yi Zeng ◽  
...  

A new strategy towards the search for practical IR NLO materials not restricted by the NLO–LIDT incompatibility is verified.


2020 ◽  
Vol 49 (11) ◽  
pp. 3388-3392 ◽  
Author(s):  
Ya Yang ◽  
Miao Song ◽  
Jie Zhang ◽  
Lihua Gao ◽  
Xiaowen Wu ◽  
...  

Coordinated regulation on physiochemical performances activated from mixed anionic ligands in a new series of IR NLO materials was systematically investigated.


2017 ◽  
Vol 46 (24) ◽  
pp. 7714-7721 ◽  
Author(s):  
Hua Lin ◽  
Hong Chen ◽  
Yu-Jun Zheng ◽  
Ju-Song Yu ◽  
Xin-Tao Wu ◽  
...  

Two new excellent phase-matchable MFIR NLO materials RbXSn2Se6 (X = Ga, In) with 3D diamond-like framework structures are reported.


1995 ◽  
Vol 413 ◽  
Author(s):  
Lifeng Geng ◽  
Jiafu Wang ◽  
Tobin J. Marks ◽  
Weiping Lin ◽  
Haitian Zhou ◽  
...  

ABSTRACTThree approaches to the construction of high-Tg polyimides and polyureas as second-order NLO materials are discussed. In the first approach, copolymerization of bismaleimides with o,o‚-diallylbisphenol-A followed by functionalization with high-β NLO chromophores using a Mitsunobu procedure yields, after poling and curing, a series of heavily crosslinked chromophoric polyimides with Tg values as high as 320°C and partially resonant χ(2) responses as high as 1.0×10-7 esu (42 pm/V at 1064 nm, 1.17 eV). In the second two approaches, copolymerization of the chromophore 4,5-bis(4‚-aminophenyl)-2-(4„- nitrophenyl)imidazole with bismaleimides or diisocyanates yields polyimides and polyureas with Tg values as high as 292°C and partially resonant χ(2)values as high as 0.62× 10-7 esu(25 pm/V at 1064 nm). It is found that careful attention to the details of curing and crosslinking during poling results in NLO- active matrices exhibiting negligible decay in ( on aging in air at 100°C for periods of 1,000-4,000 h. The imidazole based materials exhibit only about 10% χ(2) decay on aging for 100 h at 200°C under N2.


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