Figure 2
From: Terahertz waves dynamic diffusion in 3D printed structures
Comparison between experimental and simulated transmittance spectra for photonic structures made of 1, 4, 8 and 12 layers of rods. For 1 layer the agreement is very good with only an overall higher transmittance for the experimental curve after 0.3 THz. For 4, 8 and 12 layers the agreement is still good overall but differences between the experiments and simulations appear after 0.3 THz. In particular, the most evident difference is the closure of the forbidden bands which can be well seen in the structure with 4 layers (red arrows).
