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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 22 — Oct. 22, 2012
  • pp: 25111–25120

Backscattering properties of small layered plates: a model for iridosomes

Meng Gao, Yu You, Ping Yang, and George W. Kattawar  »View Author Affiliations


Optics Express, Vol. 20, Issue 22, pp. 25111-25120 (2012)
http://dx.doi.org/10.1364/OE.20.025111


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Abstract

The backscattering properties of small layered plates are studied for various size parameter values with respect to the plate thickness, plate aspect ratio, number of layers, incident direction, and polarization states of the incident light. The results are compared with the analytical results for semi-infinite plates. The phase functions and the corresponding backscattering efficiencies of the small plates are computed with the Discrete Dipole Approximation method. The angular width of the reflection peak is found to depend on both the size parameter and the aspect ratio. The criteria for using the reflectance of semi-infinite plates to approximate the backscattering efficiencies of finite size plates are quantified with respect to the number of layers, incident angle, and polarization state.

© 2012 OSA

OCIS Codes
(290.1350) Scattering : Backscattering
(310.6860) Thin films : Thin films, optical properties
(160.1435) Materials : Biomaterials
(290.5855) Scattering : Scattering, polarization

ToC Category:
Scattering

History
Original Manuscript: August 24, 2012
Revised Manuscript: October 10, 2012
Manuscript Accepted: October 10, 2012
Published: October 18, 2012

Citation
Meng Gao, Yu You, Ping Yang, and George W. Kattawar, "Backscattering properties of small layered plates: a model for iridosomes," Opt. Express 20, 25111-25120 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-22-25111


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