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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 14 — Jul. 15, 2014
  • pp: 4104–4107

Rigorous speckle simulation using surface integral equations and higher order boundary element method

Liwei Fu, Karsten Frenner, and Wolfgang Osten  »View Author Affiliations


Optics Letters, Vol. 39, Issue 14, pp. 4104-4107 (2014)
http://dx.doi.org/10.1364/OL.39.004104


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Abstract

The scattering of electromagnetic waves from rough surfaces has been actively studied for more than a century now because of its involvement in vast application areas. In the past two decades, great advances have been made by incorporating multiple scattering effects into analytical approaches. However, no model can yet be applied to surfaces with arbitrary roughness. It is also very difficult to study the cross-polarization, shadowing, or multiple scattering effects. In order to study more fundamentally the interaction of polarized light with more general rough surfaces of general media, we have developed a rigorous numerical simulator to calculate the resulting speckle fields. The full Maxwell equations were solved using surface integral equations combined with a boundary element method. The rough surface was discretized by higher order quadrilateral edge elements. The effective tangential electric and magnetic fields in each element in terms of 10 edges were first solved. The scattered electric and magnetic fields everywhere in space were then calculated correspondingly. One of the great advantages of such a simulator is that both the near and far fields can be calculated directly. Preliminary results of different kinds of metallic structures are presented, by which the advantages of the method are demonstrated.

© 2014 Optical Society of America

OCIS Codes
(030.5770) Coherence and statistical optics : Roughness
(030.6140) Coherence and statistical optics : Speckle
(290.5880) Scattering : Scattering, rough surfaces
(290.5855) Scattering : Scattering, polarization

ToC Category:
Scattering

History
Original Manuscript: April 11, 2014
Revised Manuscript: May 27, 2014
Manuscript Accepted: May 29, 2014
Published: July 4, 2014

Citation
Liwei Fu, Karsten Frenner, and Wolfgang Osten, "Rigorous speckle simulation using surface integral equations and higher order boundary element method," Opt. Lett. 39, 4104-4107 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-14-4104

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