Extracting geometrical information of closely packed random media from multiply scattered light via a cross-correlation analysis

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

doi:10.1109/LAWP.2006.872432

Extracting geometrical information of closely packed random media from multiply scattered light via a cross-correlation analysis

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

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

1 Scopus citations

Abstract

We have implemented a two-dimensional (2-D) pseudospectral time-domain (PSTD) numerical solution of Maxwell's equations to calculate the total scattering cross-section (TSCS) spectrum of a macroscopic, closely packed, random medium consisting of dielectric cylinders. Results reported in this letter show that a TSCS spectral signature is identified, revealing structural information of the random medium. Furthermore, by means of the proposed cross-correlation analysis, the diameter of constituent cylinders within a closely packed cluster can be determined. On a broader perspective, based on first principles, our research findings may lead to a better understanding of the coherent interference effect of light scattering by closely packed random media. Specifically, we show that, microscopic structural information of the random medium can be determined from the forward, multiply scattered light, even for optically thick, closely packed random media, with scatterers spaced less than a single wavelength apart.

Original language	English (US)
Article number	872432
Pages (from-to)	91-94
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	5
Issue number	1
DOIs	https://doi.org/10.1109/LAWP.2006.872432
State	Published - 2006

Funding

Manuscript received October 7, 2005; revised January 10, 2006. This work was supported by National Institutes of Health (NIH) National Cancer Institute Contract under Grants 5R01-CA085991 and 5R01-HD044015, by the NIH under Grant R01 EB003682, by the National Science Foundation (NSF) under Grant BES-0238903, and by the the NSF TeraGrid Grant MCB040062N. This work was performed under the auspices of the U.S. Department of Energy under Contract W-7405-ENG-48.

Keywords

Closely packed random media
Cross-correlation
Multiply scattered light
Total scattering cross-section

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/LAWP.2006.872432

Cite this

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title = "Extracting geometrical information of closely packed random media from multiply scattered light via a cross-correlation analysis",

abstract = "We have implemented a two-dimensional (2-D) pseudospectral time-domain (PSTD) numerical solution of Maxwell's equations to calculate the total scattering cross-section (TSCS) spectrum of a macroscopic, closely packed, random medium consisting of dielectric cylinders. Results reported in this letter show that a TSCS spectral signature is identified, revealing structural information of the random medium. Furthermore, by means of the proposed cross-correlation analysis, the diameter of constituent cylinders within a closely packed cluster can be determined. On a broader perspective, based on first principles, our research findings may lead to a better understanding of the coherent interference effect of light scattering by closely packed random media. Specifically, we show that, microscopic structural information of the random medium can be determined from the forward, multiply scattered light, even for optically thick, closely packed random media, with scatterers spaced less than a single wavelength apart.",

keywords = "Closely packed random media, Cross-correlation, Multiply scattered light, Total scattering cross-section",

author = "Tseng, {Snow H.} and Allen Taflove and Duncan Maitland and Vadim Backman and Walsh, {Joseph T.}",

note = "Funding Information: Manuscript received October 7, 2005; revised January 10, 2006. This work was supported by National Institutes of Health (NIH) National Cancer Institute Contract under Grants 5R01-CA085991 and 5R01-HD044015, by the NIH under Grant R01 EB003682, by the National Science Foundation (NSF) under Grant BES-0238903, and by the the NSF TeraGrid Grant MCB040062N. This work was performed under the auspices of the U.S. Department of Energy under Contract W-7405-ENG-48.",

year = "2006",

doi = "10.1109/LAWP.2006.872432",

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volume = "5",

pages = "91--94",

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AU - Tseng, Snow H.

AU - Taflove, Allen

AU - Maitland, Duncan

AU - Backman, Vadim

AU - Walsh, Joseph T.

N1 - Funding Information: Manuscript received October 7, 2005; revised January 10, 2006. This work was supported by National Institutes of Health (NIH) National Cancer Institute Contract under Grants 5R01-CA085991 and 5R01-HD044015, by the NIH under Grant R01 EB003682, by the National Science Foundation (NSF) under Grant BES-0238903, and by the the NSF TeraGrid Grant MCB040062N. This work was performed under the auspices of the U.S. Department of Energy under Contract W-7405-ENG-48.

PY - 2006

Y1 - 2006

N2 - We have implemented a two-dimensional (2-D) pseudospectral time-domain (PSTD) numerical solution of Maxwell's equations to calculate the total scattering cross-section (TSCS) spectrum of a macroscopic, closely packed, random medium consisting of dielectric cylinders. Results reported in this letter show that a TSCS spectral signature is identified, revealing structural information of the random medium. Furthermore, by means of the proposed cross-correlation analysis, the diameter of constituent cylinders within a closely packed cluster can be determined. On a broader perspective, based on first principles, our research findings may lead to a better understanding of the coherent interference effect of light scattering by closely packed random media. Specifically, we show that, microscopic structural information of the random medium can be determined from the forward, multiply scattered light, even for optically thick, closely packed random media, with scatterers spaced less than a single wavelength apart.

AB - We have implemented a two-dimensional (2-D) pseudospectral time-domain (PSTD) numerical solution of Maxwell's equations to calculate the total scattering cross-section (TSCS) spectrum of a macroscopic, closely packed, random medium consisting of dielectric cylinders. Results reported in this letter show that a TSCS spectral signature is identified, revealing structural information of the random medium. Furthermore, by means of the proposed cross-correlation analysis, the diameter of constituent cylinders within a closely packed cluster can be determined. On a broader perspective, based on first principles, our research findings may lead to a better understanding of the coherent interference effect of light scattering by closely packed random media. Specifically, we show that, microscopic structural information of the random medium can be determined from the forward, multiply scattered light, even for optically thick, closely packed random media, with scatterers spaced less than a single wavelength apart.

KW - Closely packed random media

KW - Cross-correlation

KW - Multiply scattered light

KW - Total scattering cross-section

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Extracting geometrical information of closely packed random media from multiply scattered light via a cross-correlation analysis

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