Abstract
This paper presents numerical near-field analysis for infrared transmission lines through an integrated optical nanocircuit. A folded dipole, with and without a stub, loading a dipole-coupled coplanar strip (CPS) transmission line is considered. Reflection of the propagating optical wave upon the load at the terminal of the CPS provides a standing wave, which is mapped through the associated surface-normal Ez electric near-field component at the metal-air interface. By fitting the analytical standing wave expression to the computed near-field data, the impedance of the load is determined.
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