Figure 7
From: An analog of photon-assisted tunneling in a periodically modulated waveguide array
Light propagation in three-guide optical systems with different spacings between the bottom and the middle waveguide for the input beam centered at the top waveguide.
First row: (a,b): the refractive index distribution R(x, z) and the light propagation |E(x, z)|2 for a three-guide system with equal channel spacing w1 = 3.2; Second row: (c,d): the refractive index distribution R(x, z) and the light propagation |E(x, z)|2 for a three-guide system with unequal channel spacing w1 = 3.2, w2 = 2.22; Third row: (e,f): the refractive index distribution R(x, z) and the light propagation |E(x, z)|2 for a three-guide system with unequal channel spacing w1 = 3.2, w2 = 1.2.
