Research Article

Negative Propagation Effects in Two-Dimensional Silicon Photonic Crystals

Figure 10

The FDTD simulations of point sources of three different frequencies placed in front of a 2D PhC slab of hexagonal lattices. The thickness of the slab is , and the distance between source and the first slab interface is . The air-PhC interface is perpendicular to the Γ-M direction, and the normalized frequencies are, respectively, (a) , (b) , and (c) .