Enhancement of the Faraday magnetooptic effect by the excitation of su
rface polariton on an interface between an iron garnet and silver is o
bserved. The main contribution to this effect is due to the rotation o
f the polarization of a surface polariton as the polariton propagates
along the interface. (C) 1998 American Institute of Physics. [S0021-36
40(98)00517-9].