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

页码：4070 / 4076

页数：7

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