Convergence of Rayleigh-Fourier Method and Rigorous Differential Method for Relief Diffraction Gratings–Non-sinusoidal Profile
- 1 January 1987
- journal article
- research article
- Published by Taylor & Francis in Journal of Modern Optics
- Vol. 34 (1) , 155-158
- https://doi.org/10.1080/09500348714550221
Abstract
Influence of the grating profile on the convergence rates of the Rayleigh-Fourier and rigorous electromagnetic methods is illustrated. On increasing the number of Fourier components and or the asymmetry of the grating profile, the convergence of the Rayleigh-Fourier method drops off rapidly; while the results of the rigorous method are not substantially affected.Keywords
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