Capabilities of the ADDA code for electromagnetic simulations

Maxim A. Yurkin, Dmitry A. Smunev, Stefania A. Glukhova, Alexander A. Kichigin, Alexander E. Moskalensky, Konstantin G. Inzhevatkin

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

The code ADDA is an open-source implementation of the discrete dipole approximation (DDA), which is a numerically exact method based on the volume-integral formulation of the Maxwell equations in the frequency domain. It can simulate interaction of arbitrary electromagnetic fields with finite scatterers having arbitrary shape and internal structure. ADDA can run both on CPU or GPU, but can also employ a multiprocessor distributed-memory system, parallelizing a single DDA calculation. Moreover, computational complexity of ADDA scales almost linearly with number of discretization voxels (dipoles), which allows one to consider large system sizes and/or fine discretization levels. ADDA is written in C99 and can be used on almost any operating system. It provides a complete control over the scattering configuration, including incident beam, particle morphology and orientation. ADDA can be used to calculate a wide variety of angle-resolved and integral scattering quantities. In addition to far-field scattering by various beams, this includes near fields as well as excitation by a point dipole or a fast electron. Moreover, ADDA can rigorously and efficiently simulate the scattering by particles near a plane homogeneous substrate or placed in a homogeneous absorbing host medium. It also incorporates many DDA improvements aimed at increasing both the accuracy and computational speed. This contribution describes the main features of ADDA and presents several simulation examples.

Original languageEnglish
Title of host publicationConference Proceedings - 2021 Radiation and Scattering of Electromagnetic Waves, RSEMW 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages111-114
Number of pages4
ISBN (Electronic)9781665425445
DOIs
Publication statusPublished - 28 Jun 2021
Event2021 Radiation and Scattering of Electromagnetic Waves, RSEMW 2021 - Divnomorskoe, Russian Federation
Duration: 28 Jun 20212 Jul 2021

Publication series

NameConference Proceedings - 2021 Radiation and Scattering of Electromagnetic Waves, RSEMW 2021

Conference

Conference2021 Radiation and Scattering of Electromagnetic Waves, RSEMW 2021
CountryRussian Federation
CityDivnomorskoe
Period28.06.202102.07.2021

Keywords

  • Absorbing host medium
  • Bessel beams
  • Discrete dipole approximation
  • Electron-energy-loss spectroscopy
  • Graphical user interface
  • Nearfield
  • Scattering

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

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