Surface plasmons on opposite sides of a thin metal film surrounded by identical dielectrics interact to form coupled surface plasmons (CSP’s). Corrugation of the metal film permits interaction of the CSP’s with the radiation field. We report the observation of optical emission from CSP’s excited by the near-field coupling of molecules adjacent to a corrugated thin metal film embedded in photoresist.
© 1987 Optical Society of America
R. W. Gruhlke, W. R. Holland, and D. G. Hall, "Optical emission from coupled surface plasmons," Opt. Lett. 12, 364-366 (1987)