The discrete dipole approximation is a general method to simulate light scattering by particles with arbitrary shape and composition and any simulation method, including the DDA, can be used to compute the T-matrix, the response of a particle to any incident wave and allows analytical orientation averaging.
In this work, we investigate time-dependent wave scattering by multiple small particles of arbitrary shape. To approximate the solution of the associated boundary-value problem, we derive an asymptotic model that is valid in the limit as the particle size tends to zero. Our method relies on a boundary integral formulat...
A. Savchuk, M. Kachanovska· ESAIM: Mathematical Modellin...· 0 citations
The superposition T-matrix method is widely used to compute the scattering, absorption, and extinction of light by aggregated particles found in cometary comae, planetary atmospheres, and protoplanetary discs. However, commonly used solvers rapidly lose their efficiency with decreasing fractal dimension or with increas...
J. Markkanen· Astronomy & Astrophysics· 0 citations
Mesoscopic physical models, including the Hydrodynamic Drude Model (HDM), the Generalized Nonlocal Optical Response (GNOR) Model, and the Surface Response Model (SRM), have been proposed to investigate nonlocal effects in nanometric structures. The combination of classical electromagnetism with these mesoscopic materia...
Xin Zheng, C. Mystilidis, C. Tserkezis et al.· 1 citation
Multiple scattering is a fundamental wave interaction phenomenon in acoustics and electromagnetics. The multipole expansion method (MEM) is the basis of many fast algorithms, such as the fast multipole method (FMM), for such problems. However, due to the infinitely many wave reflections involved, its convergence in thr...
Jin-Rui Zhang, J. Lai· 0 citations
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