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Comparing Monte Carlo simulation and pseudospectral time-domain numerical solutions of Maxwell’s equations of light scattering by a macroscopic random medium
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10.1063/1.2767777
/content/aip/journal/apl/91/5/10.1063/1.2767777
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/5/10.1063/1.2767777
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Validation of the 3D PSTD simulation. Light scattering by a cluster of seven randomly positioned, diameter, dielectric spheres is simulated, with a grid resolution of . The PSTD-computed total scattering cross-section (TSCS) as a function of frequency is compared with the multisphere expansion, which is based upon numerical expansions of Maxwell’s equations.

Image of FIG. 2.
FIG. 2.

(Color online) TSCS spectra obtained from the Monte Carlo simulation. By employing the Monte Carlo technique, the TSCS spectra are obtained, each corresponding to a (diameter ) cluster consisting of randomly positioned, , (diameter ) dielectric spheres. Five cases are shown (from bottom to top): , 50, 75, 125, and 192.

Image of FIG. 3.
FIG. 3.

(Color online) PSTD-computed TSCS spectra. Each TSCS spectra corresponds to a (overall diameter ) cluster consisting of randomly positioned, , (diameter ) dielectric spheres. Five cases are shown (from bottom to top): , 50, 75, 125, and 192. Notice that as more dielectric spheres are packed together, the TSCS spectrum gradually exhibits optical characteristics due to the overall geometry which significantly differs from the TSCS spectrum obtained in the Monte Carlo simulation.

Image of FIG. 4.
FIG. 4.

(Color online) PSTD-computed TSCS spectra of a cubic cluster geometry. Each cluster consists of randomly positioned, closely packed, dielectric spheres of diameter . (a) , ; (b) , .

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/content/aip/journal/apl/91/5/10.1063/1.2767777
2007-08-01
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Comparing Monte Carlo simulation and pseudospectral time-domain numerical solutions of Maxwell’s equations of light scattering by a macroscopic random medium
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/5/10.1063/1.2767777
10.1063/1.2767777
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