Third-order optical nonlinearity of multi-armed CdS nanorods measured by the Z-scan method

被引：11

作者：

Ning, Tingyin ^{[1
]}

Gao, Peng ^{[1
]}

Wang, Wenlong ^{[1
]}

Lu, Heng ^{[1
]}

Fu, Wangyang ^{[1
]}

Zhou, Yueliang ^{[1
]}

Zhang, Dongxiang ^{[1
]}

Bai, Xuedong ^{[1
]}

Wang, Enge ^{[1
]}

Yang, Guozhen ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2009年 / 41卷 / 04期

关键词：

Cadmium sulfide; Multi-armed nanorods; Optical nonlinearity; SHAPE DEPENDENCE; NANOCRYSTALS; SPECTROSCOPY; ABSORPTION; CLUSTERS; ROUTE;

D O I：

10.1016/j.physe.2008.11.013

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The multi-armed US nanorods were synthesized by aqueous chemical growth route at room temperature. The nonlinear optical properties of CdS nanorods dispersed in ethanol solution were investigated using the Z-scan method at a wavelength of 532 nm with pulse duration of 25 ps. The third-order nonlinear optical susceptibility, chi((3)), was determined to be 1.6 x 10(-13) esu. Accounting for the CdS concentration and the effect of the dielectric confinement, chi((3)) was extrapolated to be similar to 10(-9) esu, which is over one order of magnitude larger than that of bulk material. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：715 / 717

页数：3

共 20 条

[1] NONRESONANT - 3RD-ORDER OPTICAL NONLINEARITY OF QUANTUM-CONFINED CDS CLUSTERS - A 3RD HARMONIC-GENERATION STUDY [J].