Thue-Morse photonic crystal composite structure with space-time symmetry

The invention provides a Thue-Morse photonic crystal composite structure with space-time symmetry, and belongs to the technical field of optics. Comprising an aperiodic photonic crystal and two periodic photonic multilayer layers symmetrically distributed on the two sides of the aperiodic photonic crystal. The non-periodic photonic crystal structure comprises two symmetrically distributed Thue-Morse sequences, and the iteration rule of the Thue-Morse sequences SN is that S1 is equal to A, and N is equal to 1; s2 = AB, and N = 2; sN = SN-1 (A-AB and B-BA), N is larger than or equal to 3, A-AB in SN-1 represents that A is replaced by AB, B-BA represents that B is replaced by BA, N represents the sequence number of the sequence, and SN represents the Nth item of the sequence; a is a first dielectric layer; b is a second dielectric layer; the first dielectric layer and the second dielectric layer are two kinds of uniform dielectric sheets with different refractive indexes. The invention has the advantages of real