Figure 6
From: An analog of photon-assisted tunneling in a periodically modulated waveguide array

The left column: the characteristics of four-guide optical system; The right column: the characteristics of six-guide optical system.
(a,d) Min(P1) versus Ω2 at A = 6.6, ω = 3, Ω1 = 1; (b,e): Min(P1) versus A/ω at Ω2 = 3, ω = 3, Ω1 = 1; (c,f): quasi-energies ε versus A/ω at Ω2 = 3, ω = 3, Ω1 = 1.