The propagation range of surface plasmons in thin-metal-film geometries can be considerably increased if a suitable dielectric layer is placed in parallel to the film. The results show that this range extension depends strongly on the separation between the metal film and the dielectric layer.
© 1987 Optical Society of America
Original Manuscript: July 14, 1986
Manuscript Accepted: February 22, 1987
Published: May 1, 1987
F. Y. Kou and T. Tamir, "Range extension of surface plasmons by dielectric layers," Opt. Lett. 12, 367-369 (1987)