Figure 3
From: Robust high-Q filter with complete transmission by conjugated topological photonic crystals

The maximum value of quality factor and the transmittance versus the period number variation for topological photonic crystals with different types. All of the parameters are the same as those used in Fig. 2. Type I is non-conjugated with F1 = 0.3 and F2 = 0.38. Type II* is conjugated with F1 = 0.3 and F2 = 0.7.