Figure 4
From: Conjugated topological interface-states in coupled ring resonators

(a) The maximum value of quality factor (QF) and transmittance (T) versus the filling factor of FSR variation for the CT-SCRR, (b) the normalized frequency (Ω) versus the filling factor of FSR variation for the CT-SCRR. The parameters of the considered structure are Ra + Rb = 50 um, Cab = 0.1, D1 = D2.