Investigation of the noise-like structures of the total scattering cross-section of random media

Snow H. Tseng; Allen Taflove; Duncan Maitland; Vadim Backman; Joseph T. Walsh

doi:10.1364/OPEX.13.006127

Investigation of the noise-like structures of the total scattering cross-section of random media

Snow H. Tseng^*, Allen Taflove, Duncan Maitland, Vadim Backman, Joseph T. Walsh

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The pseudospectral time-domain (PSTD) algorithm is implemented to numerically solve Maxwell's equations to obtain the optical properties of millimeter-scale random media consisting of hundreds of micron-scale dielectric scatterers. Our methodology accounts for near-field interactions and coherent interference effects that are not easily modeled using other techniques. In this paper, we show that the total scattering cross-section (TSCS) of a cluster of closely packed scatterers exhibits a high-frequency oscillation structure, similar to noise. Furthermore, the characteristics and origin of such noise-like oscillation structure have been analyzed and determined based on first-principles.

Original language	English (US)
Pages (from-to)	6127-6132
Number of pages	6
Journal	Optics Express
Volume	13
Issue number	16
DOIs	https://doi.org/10.1364/OPEX.13.006127
State	Published - Aug 8 2005

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OPEX.13.006127

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abstract = "The pseudospectral time-domain (PSTD) algorithm is implemented to numerically solve Maxwell's equations to obtain the optical properties of millimeter-scale random media consisting of hundreds of micron-scale dielectric scatterers. Our methodology accounts for near-field interactions and coherent interference effects that are not easily modeled using other techniques. In this paper, we show that the total scattering cross-section (TSCS) of a cluster of closely packed scatterers exhibits a high-frequency oscillation structure, similar to noise. Furthermore, the characteristics and origin of such noise-like oscillation structure have been analyzed and determined based on first-principles.",

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AU - Tseng, Snow H.

AU - Taflove, Allen

AU - Maitland, Duncan

AU - Backman, Vadim

AU - Walsh, Joseph T.

PY - 2005/8/8

Y1 - 2005/8/8

N2 - The pseudospectral time-domain (PSTD) algorithm is implemented to numerically solve Maxwell's equations to obtain the optical properties of millimeter-scale random media consisting of hundreds of micron-scale dielectric scatterers. Our methodology accounts for near-field interactions and coherent interference effects that are not easily modeled using other techniques. In this paper, we show that the total scattering cross-section (TSCS) of a cluster of closely packed scatterers exhibits a high-frequency oscillation structure, similar to noise. Furthermore, the characteristics and origin of such noise-like oscillation structure have been analyzed and determined based on first-principles.

AB - The pseudospectral time-domain (PSTD) algorithm is implemented to numerically solve Maxwell's equations to obtain the optical properties of millimeter-scale random media consisting of hundreds of micron-scale dielectric scatterers. Our methodology accounts for near-field interactions and coherent interference effects that are not easily modeled using other techniques. In this paper, we show that the total scattering cross-section (TSCS) of a cluster of closely packed scatterers exhibits a high-frequency oscillation structure, similar to noise. Furthermore, the characteristics and origin of such noise-like oscillation structure have been analyzed and determined based on first-principles.

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Investigation of the noise-like structures of the total scattering cross-section of random media

Abstract

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