Figure 5
From: Photonic time crystals
Electromagnetic wave propagates in 2D photonic space-time crystal and photonic space crystal, the relation between the transmission coefficient and the frequency. (a) The permittivity of the periodical array dielectrics is ε(t) = 12.25 + sin ωt. (b) The permittivity of the periodical array dielectrics is ε(t) = 13.25. (c) The permittivity of the periodical array dielectrics is ε(t) = 11.25.
