We study the possibility of the strong localization of surface plasmon pola
ritons propagating along a metal surface a finite part of which is randomly
rough. The surface roughness is such that the roughness-induced conversion
of a surface plasmon polariton propagating on it into volume electromagnet
ic waves in the vacuum above the surface is suppressed. (C) 2001 Elsevier S
cience B.V. All rights reserved.