Figure 1
Temporal coupled-mode theory of loss-overcompensated coupling.
Transmission coefficient (a,b) and phase shift (c,d) of the plasmonic waveguide-resonator system versus the normalized detuning (ω − ω0)/γe of angular frequency (a,c) and the normalized growth rate (γg − γ0)/γe (b,d), calculated by the temporal coupled-mode theory of the loss-overcompensated coupling. In (a,c), the black solid lines are for the loss-overcompensated state (γg − γ0)/γe = 1 and the red dashed lines are for the loss state (ω − ω0)/γe = −1. In (b,d), the black solid, the red dashed and the blue dotted are for the exact resonance (ω − ω0)/γe = 0, the detuning (ω − ω0)/γe = 1 and 2, respectively.
