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Optics Letters

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  • Vol. 28, Iss. 17 — Sep. 1, 2003
  • pp: 1504–1506

Backscattering and negative polarization of agglomerate particles

Evgenij Zubko, Yuriy Shkuratov, Matthew Hart, Jay Eversole, and Gorden Videen  »View Author Affiliations


Optics Letters, Vol. 28, Issue 17, pp. 1504-1506 (2003)
http://dx.doi.org/10.1364/OL.28.001504


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Abstract

We used the discrete dipole approximation to study the backscattering of agglomerate particles consisting of oblong monomers. We varied the aspect ratio of the monomers from approximately 1 (sphere) to 4, while we kept the total particle volume equivalent to that of an x=10 sphere for m=1.59+i0 and 1.50+i0 and considered two values of agglomerate packing density: ⍴=0.25 and ⍴=0.1 . We found that these particles do not display a prominent brightness opposition effect but do produce significant negative polarization over a range of near-backscattering angles. Increasing the monomers’ aspect ratio can make the negative polarization much more prominent. We have noted also that decreasing m and ⍴ can reduce the amplitude of the negative polarization for these particles.

© 2003 Optical Society of America

OCIS Codes
(260.5430) Physical optics : Polarization
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(290.1350) Scattering : Backscattering
(290.3770) Scattering : Long-wave scattering
(290.4210) Scattering : Multiple scattering
(290.5870) Scattering : Scattering, Rayleigh

Citation
Evgenij Zubko, Yuriy Shkuratov, Matthew Hart, Jay Eversole, and Gorden Videen, "Backscattering and negative polarization of agglomerate particles," Opt. Lett. 28, 1504-1506 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-17-1504


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