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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 22 — Nov. 15, 2007
  • pp: 3358–3360

Angularly resolved light scattering from aerosolized spores: observations and calculations

Jean-Claude Auger, Kevin B. Aptowicz, Ronald G. Pinnick, Yong-Le Pan, and Richard K. Chang  »View Author Affiliations


Optics Letters, Vol. 32, Issue 22, pp. 3358-3360 (2007)
http://dx.doi.org/10.1364/OL.32.003358


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Abstract

Angularly resolved elastic light scattering patterns from individual aerosolized Bacillus subtilis spores were qualitatively compared with simulations. Two-dimensional angular optical scattering patterns of the spores were collected for polar scattering angles varying from approximately 77 ° to 130 ° and azimuthal angles varying from 0 ° to 360 ° . Computations were performed with single T-matrix formalism by simulating a spore with three different particle shapes: (1) a finite-length cylinder with spherical end caps, (2) a spheroid, and (3) two spheres in contact. Excellent agreement between computation and measurement was found for the finite-length cylinder with spherical end caps, poorer agreement was found for the spheroids, and the poorest agreement was for the two spheres in contact.

© 2007 Optical Society of America

OCIS Codes
(290.1090) Scattering : Aerosol and cloud effects
(290.3200) Scattering : Inverse scattering
(290.5850) Scattering : Scattering, particles

ToC Category:
Scattering

History
Original Manuscript: September 18, 2007
Manuscript Accepted: October 4, 2007
Published: November 14, 2007

Citation
Jean-Claude Auger, Kevin B. Aptowicz, Ronald G. Pinnick, Yong-Le Pan, and Richard K. Chang, "Angularly resolved light scattering from aerosolized spores: observations and calculations," Opt. Lett. 32, 3358-3360 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-22-3358

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