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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: Franco Gori
  • Vol. 28, Iss. 7 — Jul. 1, 2011
  • pp: 1418–1428

Scattering matrix interpolation from the perturbation method: application to calculation of a grating’s electromagnetic and scatterometric signatures

Kofi Edee  »View Author Affiliations


JOSA A, Vol. 28, Issue 7, pp. 1418-1428 (2011)
http://dx.doi.org/10.1364/JOSAA.28.001418


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Abstract

The scatterometric and electromagnetic signatures of a pattern are computed with the perturbation method combined with the Fourier modal method in order to reduce computational time. From an electromagnetic point of view, the grating is characterized by its scattering matrix, which allows the computation of the reflection and transmission coefficients. A slight variation of profile parameters or electrical ones provides a small fluctuation of the scattering matrix; consequently, an analytical expression of the local behavior of its eigenvectors and eigenvalues can be obtained by using a perturbation method.

© 2011 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(050.1755) Diffraction and gratings : Computational electromagnetic methods

ToC Category:
Diffraction and Gratings

History
Original Manuscript: December 20, 2010
Revised Manuscript: March 15, 2011
Manuscript Accepted: April 4, 2011
Published: June 16, 2011

Citation
Kofi Edee, "Scattering matrix interpolation from the perturbation method: application to calculation of a grating’s electromagnetic and scatterometric signatures," J. Opt. Soc. Am. A 28, 1418-1428 (2011)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-28-7-1418

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