Suppressed light transmission through corrugated metal films at normal incidence

In the study of light transmission through corrugated metallic film, it has been shown that along with the enhancement of light transmission, suppression may take place at specific values of the period and magnitude of corrugation for normal light incidence. Suppression was found to be due to the interplay between symmetric and assymetric surface plasmon polariton modes at their simultaneous excitation. (c) 2006 Optical Society of America.