Figure 1 | Scientific Reports

Figure 1

From: Ultrahigh-Q metallic nanocavity resonances with externally-amplified intracavity feedback

Figure 1

Schematic of a metallic nanoslit array with resonant SPP and CM excitations.

Coupling of external light with the fundamental CM is described by the single-interface transmission τ and internal reflection ρin coefficients, respectively. SPPs at the entrance and exit interfaces lead to resonant behavior of τ and ρin that drastically modify CM resonance properties inside the slits.

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