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The numerical study of plasmon resonances as optical means for light delivery in thermally assisted magnetic recording is reported. The analysis of two distinct designs is performed. In these designs, the plasmon resonances in metallic nanoparticles and perforated metallic nanofilms are used, respectively. The specific plasmon modes that create the strongest and well-localized (on nanoscale) optical fields have been identified. The issues of coupling of incident laser radiation to these plasmon modes as well as the sharpness of plasmon resonances are discussed.