How much is enough? : The convergence of finite sample scattering properties to those of infinite media
| Autor: | Timo Väisänen, Jukka Räbinä, Johannes Markkanen, Karri Muinonen, Antti Penttilä, Maxim A. Yurkin |
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| Přispěvatelé: | Department of Physics, Planetary-system research, University of Helsinki, Department of Physics, University of Helsinki, Max Planck Institute for Solar System Research, University of Helsinki, Planetary-system research, University of Helsinki, University of Jyväskylä |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
010504 meteorology & atmospheric sciences
education particulate random media pienhiukkaset optiset ominaisuudet 01 natural sciences 114 Physical sciences Volume density Scattering symbols.namesake laskennallinen tiede Convergence (routing) Radiative transfer Maxwellin yhtälöt sironta Spectroscopy 0105 earth and related environmental sciences Physics Radiation scattering Albedo Sample (graphics) Atomic and Molecular Physics and Optics Computational physics Wavelength Maxwell's equations Maxwell equations radiative transfer Particulate random media symbols approksimointi |
| Popis: | We study the scattering properties of a cloud of particles. The particles are spherical, close to the incident wavelength in size, have a high albedo, and are randomly packed to 20% volume density. We show, using both numerically exact methods for solving the Maxwell equations and radiative-transfer-approximation methods, that the scattering properties of the cloud converge after about ten million particles in the system. After that, the backward-scattered properties of the system should estimate the properties of a macroscopic, practically infinite system. (C) 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
| Databáze: | OpenAIRE |
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