META Conference, META'10

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Analytic Theory of Linear Plasmonic Antennas
Ralf Vogelgesang

Last modified: 2009-10-12


We develop a fully analytical model for the electromagnetic behavior of thin plasmonic wires, i.e., linear plasmonic antennas. It uses only the complex propagation constant of the lowest
order wire mode, the reflection phase it suffers at the wire termination, its amplitude, and the amplitude of higher order contributions as adjustable parameters. Our model successfully predicts measured and simulated data in full detail: emission patterns, nearfield optical amplitudes andphases, as well geometric resonances.