Morphology and polarization-dependent second harmonic generation in single hexagonal sodium niobate micro/nano-crystals

被引：13
作者：
Xiao, Quanlan [1 ,2 ]
Lin, Wei [1 ,2 ]
Chen, Gengxu [3 ]
Ding, Chengjie [3 ]
Dong, Guoping [1 ,2 ]
Lin, Chensheng [4 ]
Wu, Botao [3 ]
Wu, E. [3 ]
Zeng, Heping [3 ]
Qiu, Jianrong [1 ,2 ]
机构：
[1] S China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510641, Guangdong, Peoples R China
[2] S China Univ Technol, Inst Opt Commun Mat, Guangzhou 510641, Guangdong, Peoples R China
[3] E China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China
[4] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2015年 / 3卷 / 16期
基金：
中国国家自然科学基金;
关键词：
BATIO3; NANOPARTICLES; SHG NANOPROBES; NANOCRYSTALS; MICROSCOPY; CELLS;
D O I：
10.1039/c5tc00226e
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We synthesized NaNbO3 micro/nano-crystals with six morphologies and three different crystal structures using the hydrothermal method. Each single hexagonal NaNbO3 micro/nano-crystal (samples No. 1-3) exhibited a strong second-order nonlinear response. By calculating the average intensity and measuring the polarization response of each of these hexagonal crystals (samples No. 1-3), it was demonstrated that the same crystal structure displays a similar optical second harmonic generation (SHG) response. Furthermore, SHG was shown to be independent of the morphology and identical for similar crystals, which is expected for a volume effect with a second-order susceptibility tensor depending on the properties of the material. The optical SHG properties of these NaNbO3 micro/nano-crystals together with the previous related research suggest that these non-toxic crystals may find promising applications in biological imaging and related fields.
引用
收藏
页码：4070 / 4076
页数：7
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