[en] The efficiency of the transmission of surface plasmon waves
by use of a dielectric diffraction grating is discussed. The
Kretschmann device allows us to obtain a surface plasmon
resonance that consists of an absorption peak in the reflection
spectrum. When surface plasmon resonance occurs, the TM-
polarization mode of the incident electromagnetic wave is
neither transmitted nor reflected. The procedure to transform an
absorption peak into a transmission peak is described.
Transmittivity of 68% is obtained for a simple structure that
consists of a thin-film layer of Ag coated on a volume
diffraction grating and embedded between two dielectric media.
The results presented herein were obtained by numerical
simulations that were carried out by use of an algorithm based
on the rigorous coupled-wave theory. Service de Physique
Générale, Hololab Fonds pour la formation à la Recherche dans
l'Industrie et dans l'Agriculture (Communauté française de
Belgique) - FRIA