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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 16, Iss. 5 — May. 1, 1999
  • pp: 1124–1130

Pseudospectral method for the analysis of diffractive optical elements

P. G. Dinesen, J. S. Hesthaven, J. P. Lynov, and L. Lading  »View Author Affiliations

JOSA A, Vol. 16, Issue 5, pp. 1124-1130 (1999)

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A pseudospectral method for the analysis of diffractive optical elements is presented. This method is a full-vectorial direct solution of the time-domain Maxwell equations based on a spectral approximation of the spatial derivatives employed within a multidomain framework. The method exhibits little numerical dispersion, and only a few points per wavelength are needed to accurately resolve the propagation of the optical field over long distances. A comparison with the analytic solution for a thin-film waveguide is performed, and examples of analyses of grating couplers are given to demonstrate the feasibility of the method.

© 1999 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(050.1960) Diffraction and gratings : Diffraction theory

Original Manuscript: August 4, 1998
Revised Manuscript: November 30, 1998
Manuscript Accepted: December 2, 1998
Published: May 1, 1999

P. G. Dinesen, J. S. Hesthaven, J. P. Lynov, and L. Lading, "Pseudospectral method for the analysis of diffractive optical elements," J. Opt. Soc. Am. A 16, 1124-1130 (1999)

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