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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 25 — Dec. 10, 2007
  • pp: 16424–16430

Backscattering of light from disk-like particles with aperiodic angular fine structure

Howard R. Gordon  »View Author Affiliations


Optics Express, Vol. 15, Issue 25, pp. 16424-16430 (2007)
http://dx.doi.org/10.1364/OE.15.016424


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Abstract

Recent computations of the backscattering cross section (σ b ) of randomly-oriented disk-like particles (refractive index, 1.20) with small-scale periodic angular internal structure, have been repeated for similarly sized particles, but with the periodic structure replaced by an aperiodic structure. The latter is formed by randomly perturbing a periodic structure. Although σ b for individual realizations of an aperiodic disk can differ significantly from that of its periodic counterpart, averaging over several realizations brings the two into confluence, unless the aperiodicity is too large. These computations suggest that using disks with perfectly periodic (as opposed to quasi-periodic) fine structure for modeling the backscattering of detached coccoliths from E. huxleyi is justified.

© 2007 Optical Society of America

OCIS Codes
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(290.1350) Scattering : Backscattering

ToC Category:
Scattering

History
Original Manuscript: October 31, 2007
Revised Manuscript: November 20, 2007
Manuscript Accepted: November 20, 2007
Published: November 27, 2007

Citation
Howard R. Gordon, "Backscattering of light from disk-like particles with aperiodic angular fine structure," Opt. Express 15, 16424-16430 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-25-16424


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References

  1. H. R. Gordon and A. Y. Morel, Remote Assessment of Ocean Color for Interpretation of Satellite Visible Imagery: A Review (Springer-Verlag, 1983). [CrossRef]
  2. D. Stramski, E. Boss, D. Bogucki, and K. J. Voss, "The role of seawater constituents in light backscattering in the ocean," Prog. Oceanogr. 61, 27-56 (2004). [CrossRef]
  3. M. I. Mishchenko, L. D. Travis, and A. A. Lacis, Scattering, Absorption, and Emission of Light by Small Particles (Cambridge, 2002).
  4. H. R. Gordon and T. Du, "Light scattering by nonspherical particles: application to coccoliths detached from Emiliania huxleyi," Limnol. Oceanogr. 46, 1438-1454 (2001). [CrossRef]
  5. H. R. Gordon, "Backscattering of light from disk-like particles: is fine-scale structure or gross morphology more important?," Appl. Opt. 45, 7166-7173 (2006). [CrossRef] [PubMed]
  6. B. T. Draine, "The discrete-dipole approximation and its application to interstellar graphite grains," Astrophys. J. 333, 848-872 (1988). [CrossRef]
  7. B. T. Draine and P. Flatau, "Discrete-dipole approximation for scattering calculations," J. Opt. Soc. Am. A ll, 1491-1499 (1994). [CrossRef]
  8. H. R. Gordon, "Rayleigh-Gans scattering approximation: surprisingly useful for understanding backscattering from disk-like particles," Opt. Express 15, 5572-5588 (2007). [CrossRef] [PubMed]

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