Optical trapping of carbon nanotubes

被引：29
|
作者：
Marago, O. M.
Gucciardi, P. G.
Bonaccorso, F. [1 ]
Calogero, G.
Scardaci, V. [2 ]
Rozhin, A. G. [2 ]
Ferrari, A. C. [2 ]
Jones, P. H. [3 ]
Saija, R. [1 ]
Borghese, F. [1 ]
Denti, P. [1 ]
Iati, M. A. [1 ]
机构：
[1] Dipartmento Fis Mat & Tecnol Fis Avanzate, I-98166 Messina, Italy
[2] Univ Cambridge, Dept Engn, Cambridge CB3 0FA, England
[3] UCL, Dept Phys & Astron, London WC1E 6BT, England
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2008年 / 40卷 / 07期
基金：
英国工程与自然科学研究理事会;
关键词：
optical trapping; nanotubes; dispersion; scattering theory;
D O I：
10.1016/j.physe.2007.10.088
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Optical trapping is a new tool for the manipulation and deposition of single wall carbon nanotube (SWNT) bundles. We present a study on optical trapping and manipulation of SWNT bundles in different environments, aimed at understanding the trapping mechanism. SWNTs are dispersed in water or organic solvents, and a wide range of both ionic and non-ionic surfactants, with different chain lengths, is used. We demonstrate that the surfactant plays a key role in optical trapping, strongly affecting the trapping force. Finally we discuss the calculation of radiation force for quasi-one-dimensional (1D) nanoparticles by means of field expansion in the framework of the T-matrix approach. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：2347 / 2351
页数：5
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