Optical Second-Harmonic Generation Behavior of Films Consisting of Nanoparticles of Conjugated Ketone Derivatives

被引：1
|
作者：
Hasegawa, Shinya [1 ]
Hirakawa, Shoichiro [1 ]
Inada, Yozo [1 ]
Kawamata, Jun [1 ]
机构：
[1] Yamaguchi Univ, Fac Sci, Dept Chem, Yamaguchi 7538512, Japan
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 01期
关键词：
Nanoparticle; Solid Film; Second-Harmonic Generation; SHG; Ketone; LANGMUIR-BLODGETT-FILMS; CRYSTALS;
D O I：
10.1166/jnn.2009.J091
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Solid films consisting of nanoparticles of salient nonlinear optical chromophores, alpha,alpha'-di(p-dimethylaminobenzylidene)cycloalkanones, were fabricated by a method based on the Langmuir-Blodgett technique. Obtained films were highly transparent and showed optical second-harmonic generation (SHG) activity even when the bulk crystal of the employed chromophore is not SHG active. We performed SHG measurements of films consisting of SHG active and inactive chromophores in various polarization geometries. As a result, SHG response from a film consisting of a SHG inactive chromophore was found to be mainly due to the surface SHG of particles in the film. On the one hand, a film consisting of a SHG active chromophore exhibited bulk SHG responses.
引用
收藏
页码：216 / 220
页数：5
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