Analysis of channel plasmon-polariton nanoantennas based on a meshless boundary integral equation approach

The optical near field of subwavelength grooves milled in metal surfaces is investigated and channel plasmon polariton nanoantennas are analyzed with a Spectral Boundary Integral Equation approach. Due to an extensive use of semi-analytical meshless procedures the numerical simulation tool guaranties the solution with high accuracy and reduced complexity. The results indicate a strong field enhancement inside the groove and a pronounced dependence of the antenna characteristics on the groove geometry.

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