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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 29, Iss. 8 — Aug. 1, 2012
  • pp: 1498–1507

Understanding light scattering by a coated sphere Part 2: Time domain analysis

Philip Laven and James A. Lock  »View Author Affiliations


JOSA A, Vol. 29, Issue 8, pp. 1498-1507 (2012)
http://dx.doi.org/10.1364/JOSAA.29.001498


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Abstract

Numerical computations were made of scattering of an incident electromagnetic pulse by a coated sphere that is large compared to the dominant wavelength of the incident light. The scattered intensity was plotted as a function of the scattering angle and delay time of the scattered pulse. For fixed core and coating radii, the Debye series terms that most strongly contribute to the scattered intensity in different regions of scattering angle-delay time space were identified and analyzed. For a fixed overall radius and an increasing core radius, the first-order rainbow was observed to evolve into three separate components. The original component faded away, while the two new components eventually merged together. The behavior of surface waves generated by grazing incidence at the core/coating and coating/exterior interfaces was also examined and discussed.

© 2012 Optical Society of America

OCIS Codes
(290.4020) Scattering : Mie theory
(320.2250) Ultrafast optics : Femtosecond phenomena
(080.5692) Geometric optics : Ray trajectories in inhomogeneous media

ToC Category:
Scattering

History
Original Manuscript: April 9, 2012
Revised Manuscript: May 31, 2012
Manuscript Accepted: May 31, 2012
Published: July 9, 2012

Virtual Issues
Vol. 7, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Philip Laven and James A. Lock, "Understanding light scattering by a coated sphere Part 2: Time domain analysis," J. Opt. Soc. Am. A 29, 1498-1507 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-8-1498

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Supplementary Material


» Media 1: AVI (944 KB)     

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