The discrete-dipole-approximation code ADDA: Capabilities and known limitations. The open-source code ADDA is described, which implements the discrete dipole approximation (DDA), a method to simulate light scattering by finite 3D objects of arbitrary shape and composition. Besides standard sequential execution, ADDA can run on a multiprocessor distributed-memory system, parallelizing a single DDA calculation. Hence the size parameter of the scatterer is in principle limited only by total available memory and computational speed. ADDA is written in C99 and is highly portable. It provides full control over the scattering geometry (particle morphology and orientation, and incident beam) and allows one to calculate a wide variety of integral and angle-resolved scattering quantities (cross sections, the Mueller matrix, etc.). Moreover, ADDA incorporates a range of state-of-the-art DDA improvements, aimed at increasing the accuracy and computational speed of the method. We discuss both physical and computational aspects of the DDA simulations and provide a practical introduction into performing such simulations with the ADDA code. We also present several simulation results, in particular, for a sphere with size parameter 320 (100-wavelength diameter) and refractive index 1.05.
Keywords for this software
References in zbMATH (referenced in 4 articles )
Showing results 1 to 4 of 4.
- Carpio, Ana; Dimiduk, Thomas G.; Le Louër, Frédérique; Rapún, María Luisa: When topological derivatives met regularized Gauss-Newton iterations in holographic 3D imaging (2019)
- Carpio, A.; Dimiduk, T. G.; Selgas, V.; Vidal, P.: Optimization methods for in-line holography (2018)
- Costabel, Martin; Darrigrand, Eric; Sakly, Hamdi: Volume integral equations for electromagnetic scattering in two dimensions (2015)
- Cui, Zhiwei; Han, Yiping: A review of the numerical investigation on the scattering of Gaussian beam by complex particles (2014)