Comparison between discrete dipole implementations and exact techniques

被引：130

作者：

Penttila, Antti ^{[1
]}

Zubko, Evgenij ^{[1
,2
,3
]}

Lumme, Kari ^{[1
]}

Muinonen, Karri ^{[1
]}

Yurkin, Maxim A. ^{[4
,5
]}

Draine, Bruce ^{[6
]}

Rahola, Jussi ^{[7
]}

Hoekstra, Alfons G. ^{[4
]}

Shkuratov, Yuri ^{[2
]}

机构：

[1] Univ Helsinki, FI-00014 Helsinki, Finland

[2] Kharkov Natl Univ, Astron Inst, UA-61022 Kharkov, Ukraine

[3] Hokkaido Univ, Inst Low Temp Sci, Sapporo, Hokkaido 0600819, Japan

[4] Univ Amsterdam, Fac Sci, Sect Computat Sci, NL-1098 SJ Amsterdam, Netherlands

[5] Russian Acad Sci, Inst Chem Kinet & Combust, Siberian Branch, Novosibirsk 630090, Russia

[6] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[7] Simulintu Oy, Espoo, Finland

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2007年 / 106卷 / 1-3期

基金：

芬兰科学院;

关键词：

scattering; discrete-dipole approximation;

D O I：

10.1016/j.jqsrt.2007.01.026

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The use of the discrete dipole approximation (DDA) method in wave optical scattering simulations is growing quite fast. This is due to the fact that the current computing resources allow to apply DDA to sufficiently large scattering systems. The advantage of DDA is that it is applicable to arbitrary particle shape and configuration of particles. There are several computer implementations of the DDA method, and in this article we will compare four of such implementations in terms of their accuracy, speed and usability. The accuracy is studied by comparing the DDA results against results from either Mie, T-matrix or cluster T-Matrix codes with suitable geometries. It is found that the relative accuracy for intensity is between 2% and 6% for ice and silicate type refractive indices and the absolute accuracy for linear polarization ratio is roughly from 1% to 3%. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：417 / 436

页数：20

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