The influence of surface modification on the femtosecond optical Kerr effect of PbS nanoparticles

被引：9
|
作者：
Guo, L
Wu, ZH
Ai, XC
Li, QS
Zhu, HS
Yang, SH
机构：
[1] Chinese Acad Sci, BSRL, Inst High Energy Phys, Beijing 100039, Peoples R China
[2] Beijing Inst Technol, Coll Chem Engn & Mat Sci, Beijing 100081, Peoples R China
[3] Hong Kong Univ Sci & Technol, Dept Chem, Hong Kong, Hong Kong, Peoples R China
来源：
OPTICAL MATERIALS | 2000年 / 14卷 / 03期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
PbS nanoparticles; surfactant environment; optical Kerr effect;
D O I：
10.1016/S0925-3467(99)00146-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
PbS nanoparticles modified by cetyltrimethylammonium bromide (CTAB) and sodium dodecyl benzene sulphonate (DBS) have been synthesized, The subpicosecond optical nonlinearity of these PbS nanoparticles was investigated by using the femtosecond optical Kerr effect (OKE) experiment. The spectral behavior and the OKE results confirm that the surfactant environment has crucial rule on the linear and nonlinear optical properties. From the transient response, the relaxation time of the samples has been proved shorter than the laser pulse width. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：247 / 250
页数：4
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