Figure 1
Comparison of the undulation amplitudes and eigenfrequencies ωl for different layers n, modes l and total layers N for a given q⊥. The wavelengths in (a) and (b) are normalized such that ωl = N − 1 = 1; the undulation amplitudes are likewise normalized to the largest amplitude in l = N − 1. The colours are not significant other than to distinguish neighbouring layers. |