Extraordinary transmission of metal films with arrays of subwavelength holes.
Metal films with patterns of subwavelength holes (grids or meshes) have interesting optical properties including the extraordinary transmission effect. These optically thick metal films transmit more radiation than that incident on the holes owing to the excitation of surface plasmons (SPs). Meshes present a new and simple way to excite SPs at perpendicular incidence (i.e., without the need to vary the angle of the incident beam). This represents a new opportunity to integrate SPs with experiments and devices-a new instrument in the toolbox of SP techniques that may broaden the range of SP applications. This review discusses the discovery, basic optical physics, the role of SPs, and applications of the extraordinary transmission of subwavelength hole arrays.
Coe
James V
JV
Department of Chemistry, The Ohio State University, Columbus, Ohio 43210-1173, USA. coe.1@osu.edu
Heer
Joseph M
JM
Teeters-Kennedy
Shannon
S
Tian
Hong
H
Rodriguez
Kenneth R
KR