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There are two conflicting narratives of Electromagnetics in metals:
1. The microwave circuit narrative in which metals, distributed capacitors, and distributed inductors function together in a high frequency circuit, albeit as distributed components. Here there is a rich tradition of various electromagnetic functions, including the antenna function.
2. This is countered by the optical-plasmonic narrative, in which metallic electromagnetics is thought to be dominated by plasmons, electromagnetic normal modes in which the inertia of the electrons plays a major role.
In resolving the conflict, the most exciting new opportunities arise from optical antennas, which are well-poised to change the rules of optical physics.
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