Interaction of single surface plasmons with a single emitter. Diagram a (top): Two-level emitter interacting with the nanowire. The two states are coupled via the surface-plasmon modes with a strength g. Diagram b (bottom): Schematic diagram of a single incident photon scattered off a near-resonant emitter. The interaction leads to reflected and transmitted fields whose amplitudes can be calculated exactly. (Courtesy: Nature Physics). |
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