Influence of film thickness on the optical transmission through subwavelength single slits in metallic thin films - Ferri, Fabio A.; Rivera, Victor A. G.; Osorio, Sérgio P. A.; Silva, Otávio B.; Zanatta, Antonio Ricardo; Borges, Ben-Hur Viana; Weiner, John; Marega Junior, Euclydes (Applied Optics, 2011)