Third-order optical nonlinearity of Cu nanoparticle-dispersed Ba0.5Sr0.5TiO3 films prepared by alternating pulsed laser deposition

被引：22
作者：
Kim, Ji-Suk
Lee, Kyeong-Seok
Kim, Sang Sub [1 ]
机构：
[1] Chonnam Natl Univ, Dept Mat Sci & Engn, Kwangju 500757, South Korea
[2] Korea Inst Sci & Technol, Thin Film Mat Res Ctr, Seoul 136791, South Korea
来源：
THIN SOLID FILMS | 2006年 / 515卷 / 04期
关键词：
nanocomposites; nonlinear optical properties; pulse laser deposition; copper; barium; strontium; titanate;
D O I：
10.1016/j.tsf.2006.03.058
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanocomposite thin films consisting of nanometer-sized Cu particles embedded in an amorphous Ba0.5Sr0.5TiO3 matrix (Cu:BST) on Al2O3 (0001) substrates were fabricated by an alternating pulsed laser deposition method. The nanocomposite films containing Cu nanoparticles with a volume fraction of more than 5.4% showed a characteristic surface plasmon resonance (SPR) absorption band at similar to 580 nm. The nonlinear optical properties of the Cu:BST nanocomposite film with a Cu volume faction of 5.4% were determined using the Z-scan method at the SPR wavelength. The magnitude of the third-order nonlinear susceptibility of the sample was calculated to be 9.737 x 10(-9) esu. (c) 2006 Elsevier B.V All rights reserved.
引用
收藏
页码：2332 / 2336
页数：5
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