Discrete-dipole approximation for periodic targets: theory and tests

被引：395

作者：

Draine, Bruce T. ^{[1
]}

Flatau, Piotr J. ^{[2
]}

机构：

[1] Princeton Univ Observ, Princeton, NJ 08544 USA

[2] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2008年 / 25卷 / 11期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1364/JOSAA.25.002693

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The discrete-dipole approximation (DDA) is a powerful method for calculating absorption and scattering by targets that have sizes smaller than or comparable to the wavelength of the incident radiation. The DDA can be extended to targets that are singly or doubly periodic. We generalize the scattering amplitude matrix and the 4 x 4 Mueller matrix to describe scattering by singly and doubly periodic targets and show how these matrices can be calculated using the DDA. The accuracy of DDA calculations using the open-source code DDSCAT is demonstrated by comparison with exact results for infinite cylinders and infinite slabs. A method for using the DDA solution to obtain fields within and near the target is presented, with results shown for infinite slabs. (C) 2008 Optical Society of America

引用

页码：2693 / 2703

页数：11

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