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A Study Of The Propagation Characteristics Of A Metal Electrode At Optical Wavelengths

This paper reports the first theoretical study of the propagation characteristics of a rectangular electrode at optical wavelengths. The method of lines was used to find a number of modes supported by the metallization which is modelled as a 2-D dielectric region having a negative relative dielectric constant. It was found that the electrode supports a number of modes that are similar to plasmon modes found in planar metallized optical guides.