Symmetry-induced perfect transmission of light waves in quasiperiodic dielectric multilayers

Resonant transmission of light has been observed in symmetric Fibonacci TiO2 /SiO2 multilayers, which is characterized by many perfect transmission peaks. The perfect transmission dramatically decreases when the mirror symmetry in the multilayer structure is deliberately disrupted. Actually, the feature of perfect transmission peaks can be considered as general evidence for dielectric multilayers with symmetric internal structure. It opens a unique way to control light propagation.