Pseudospectral method for the analysis of diffractive optical elements

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. (C) 1999 Optical Society of America [S0740-3232(99)00705-X].


Published in:
Journal of the Optical Society of America A, 16, 5, 1124-1130
Year:
1999
Publisher:
OPTICAL SOC AMER
ISSN:
0740-3232
Laboratories:




 Record created 2013-11-12, last modified 2018-09-13

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