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Proceedings Paper

Exact solution to diffraction on a grating with parallelogramic grooves by the true modal method
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Paper Abstract

The formalism of the True Modal Method up to now written for diffraction gratings with a rectangular profile is extended to 1D-periodic structures with parallelogramic grooves. An appropriate coordinate transformation is proposed in order to express analytically in a simple form the modes propagating in the grating region. Numerical examples of calculation of the propagation constants of the eigenmodes of the grating and of the total diffraction efficiency of lamellar parallelogramic structures are given and results are compared with those obtained by other methods.

Paper Details

Date Published: 18 April 2006
PDF: 10 pages
Proc. SPIE 6182, Photonic Crystal Materials and Devices III (i.e. V), 61821G (18 April 2006); doi: 10.1117/12.668476
Show Author Affiliations
M. Foresti, Saint-Gobain Recherche (France)
A. V. Tishchenko, Univ. Jean Monnet (France)

Published in SPIE Proceedings Vol. 6182:
Photonic Crystal Materials and Devices III (i.e. V)
Richard M. De La Rue; Pierre Viktorovitch; Ceferino Lopez; Michele Midrio, Editor(s)

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