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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: Stephen A. Burns
  • Vol. 25, Iss. 1 — Jan. 1, 2008
  • pp: 90–97

Scattering from rough thin films: discrete-dipole-approximation simulations

Hannu Parviainen and Kari Lumme  »View Author Affiliations


JOSA A, Vol. 25, Issue 1, pp. 90-97 (2008)
http://dx.doi.org/10.1364/JOSAA.25.000090


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Abstract

We investigate the wave-optical light scattering properties of deformed thin circular films of constant thickness using the discrete-dipole approximation. Effects on the intensity distribution of the scattered light due to different statistical roughness models, model dependent roughness parameters, and uncorrelated, random, small-scale porosity of the inhomogeneous medium are studied. The suitability of the discrete-dipole approximation for rough-surface scattering problems is evaluated by considering thin films as computationally feasible rough-surface analogs. The effects due to small-scale inhomogeneity of the scattering medium are compared with the analytic approximation by Maxwell Garnett, and the results are found to agree with the approximation.

© 2008 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(290.0290) Scattering : Scattering
(290.5880) Scattering : Scattering, rough surfaces
(310.0310) Thin films : Thin films
(310.6860) Thin films : Thin films, optical properties

ToC Category:
Scattering

History
Original Manuscript: August 20, 2007
Manuscript Accepted: October 23, 2007
Published: December 10, 2007

Citation
Hannu Parviainen and Kari Lumme, "Scattering from rough thin films: discrete-dipole-approximation simulations," J. Opt. Soc. Am. A 25, 90-97 (2008)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-25-1-90


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