Large third-order optical nonlinearity of SrBi2Nb2O9 thin films fabricated by pulsed laser deposition

被引:11
作者
Chen, Kansong [1 ]
Gu, Haoshuang [1 ]
Zou, Jiansan [1 ]
Li, Wang [1 ]
Yi, Huang [1 ]
机构
[1] Hubei Univ, Fac Phys & Elect Technol, Hubei Ferroelect & Piezoelect Mat & Devices Key L, Wuhan 430062, Peoples R China
基金
中国国家自然科学基金;
关键词
SrBi2Nb2O9; thin films; deposition; optical nonlitlearity;
D O I
10.1016/j.matlet.2006.12.060
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
SrBi2Nb2O9 (SBN) thin films with a single phase of layered perovskite structure have been fabricated on fused quartz substrates at room temperature by pulsed laser deposition. The XRD and AFM analysis indicated that the films had better crystallinity, less rough surface morphology, and larger grain size with increasing oxygen pressure. The nonlinear optical properties of the samples were determined using a single beam Z-scan technique at a laser wavelength of 532 nm with laser duration of 25 ps. The real and imaginary parts of the third-order nonlinear optical susceptibility chi((3)) of the films were measured to be 3.18 x 10(-8) esu and 5.94 x 10(-9) esu, respectively. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:3701 / 3704
页数:4
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