Enlarged omnidirectional photonic band gap in one-dimensional ternary plasma photonic crystals based on a new Thue–Morse aperiodic structure

•The new PPCs have a superior feature in the enhancement of OBGs.•The OBGs can be enlarged by increasing the thickness and the density of the plasma.•OBG ceases to change with increasing Thue–Morse order.•The plasma collision frequency has no effect on the OBG.

In this paper, an omnidirectional photonic band gap (OBG) realized by one-dimensional ternary non-magnetized plasma dielectric photonic crystals (PPCs) based on a new Thue–Morse aperiodic structure, is studied by the transfer matrix method. From the numerical results, the OBG can be enlarged by manipulating the plasma thickness and density, but ceases to change with increasing Thue–Morse order. However, the plasma collision frequency has no effect on the OBG. It is clear that such new one-dimensional ternary PPCs have a superior feature in the enhancement of OBG compared with the conventional ternary and conventional ternary Thue–Morse aperiodic PPCs.