Second harmonic scattering from small particles using Discrete Dipole Approximation

被引:16
作者
Balla, Naveen K. [1 ,2 ]
So, Peter T. C. [1 ,3 ,4 ]
Sheppard, Colin J. R. [1 ,2 ,5 ]
机构
[1] Natl Univ Singapore, Computat & Syst Biol Program, Singapore MIT Alliance, Singapore 117576, Singapore
[2] Natl Univ Singapore, Div Bioengn, Singapore 117574, Singapore
[3] MIT, Dept Biol Engn, Cambridge, MA 02139 USA
[4] MIT, Dept Mech Engn, Cambridge, MA 02139 USA
[5] Natl Univ Singapore, Dept Biol Sci, Singapore 117543, Singapore
来源
OPTICS EXPRESS | 2010年 / 18卷 / 21期
关键词
ELASTIC LIGHT-SCATTERING; 2ND HARMONIC-GENERATION; OPTICAL-PROPERTIES; GOLD; SHAPE; SIZE; NANOPARTICLES; SIMULATIONS; EXTINCTION; ABSORPTION;
D O I
10.1364/OE.18.021603
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We extend a simple dipole approximation model to predict nonlinear scattering from small particles. This numerical method is known as Discrete Dipole Approximation (DDA) and has been extensively used to model linear scattering by small particles of various shapes and sizes. We show here that DDA can be used to efficiently model second harmonic scattering by small particles. Our results are compared with experimental data and other computational methods. (C) 2010 Optical Society of America
引用
收藏
页码:21603 / 21611
页数:9
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