We present experimental results to verify extraordinary optical transmission through two-dimensionally periodic, corrugated metallic films without holes as predicted by Bonod [Opt. Express11, 482 (2003)]. We also experimentally confirmed that using symmetric structures (metallic films sandwiched between two identical dielectric media) is advantageous for boosting the coupling of surface plasmons so as to create strong transmission peaks.
© 2005 Optical Society of America
(050.1950) Diffraction and gratings : Diffraction gratings
(050.2770) Diffraction and gratings : Gratings
(240.6680) Optics at surfaces : Surface plasmons
(310.6860) Thin films : Thin films, optical properties
Benfeng Bai, Lifeng Li, and Lijiang Zeng, "Experimental verification of enhanced transmission through two-dimensionally corrugated metallic films without holes," Opt. Lett. 30, 2360-2362 (2005)