The propagation and attenuation constants of long-range surface-plasmon polaritons propagating on thin metal films have been measured for several film thicknesses by using a hemispherical retroreflecting coupler. The results are in agreement with our theoretical dispersion curves, which predict that the attenuation constant of this mode can decrease by a factor of 63 relative to that obtained with a thick metal film.
© 1983 Optical Society of America
Original Manuscript: April 4, 1983
Published: July 1, 1983
Alan E. Craig, Grieg A. Olson, and Dror Sarid, "Experimental observation of the long-range surface-plasmon polariton," Opt. Lett. 8, 380-382 (1983)