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Applied Optics

Applied Optics


  • Vol. 20, Iss. 2 — Jan. 15, 1981
  • pp: 240–244

Coupled-wave analysis of reflection gratings

M. G. Moharam and T. K. Gaylord  »View Author Affiliations

Applied Optics, Vol. 20, Issue 2, pp. 240-244 (1981)

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Diffraction of electromagnetic waves by longitudinally periodic media (reflection gratings) is rigorously analyzed using an exact coupled-wave approach. The analysis is formulated in a simple matrix form easily implemented on a digital computer. The intensities of the two waves, the diffracted (reflected) and transmitted waves, are calculated for a wide range of parameters. These exact results are then compared to results obtained with approximate two-wave modal, and with multiwave and two-wave coupled-wave analyses. The applicability of these approximate theories is discussed. The case of other than first-order Bragg incidence is also included.

© 1981 Optical Society of America

Original Manuscript: July 5, 1980
Published: January 15, 1981

M. G. Moharam and T. K. Gaylord, "Coupled-wave analysis of reflection gratings," Appl. Opt. 20, 240-244 (1981)

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