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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 11 — May. 26, 2008
  • pp: 8292–8299

Grating superposition method: ultrafast electromagnetic numerical analysis for random structures

Hiroyuki Ichikawa  »View Author Affiliations

Optics Express, Vol. 16, Issue 11, pp. 8292-8299 (2008)

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A very efficient numerical tool to electromagnetically analyze random structures is proposed. The principle is treating random structure as superposition of diffraction gratings. Then, influence of each component grating can be computed with any electromagnetic grating theory which is well established for its accuracy and computation speed. This article explains how to treat obtained data in detail. Applied to single-tiered scatteres, the proposed method gives comparable results with a standard way based on FDTD method in far shorter time.

© 2008 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(290.5880) Scattering : Scattering, rough surfaces
(050.5745) Diffraction and gratings : Resonance domain

ToC Category:
Diffraction and Gratings

Original Manuscript: March 26, 2008
Revised Manuscript: May 2, 2008
Manuscript Accepted: May 20, 2008
Published: May 22, 2008

Hiroyuki Ichikawa, "Grating superposition method: ultrafast electromagnetic numerical analysis for random structures," Opt. Express 16, 8292-8299 (2008)

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