Figure 10
Calculation of the phase of a secondary wave when it reaches the detector (same configuration as in Fig. 2) as a function of the position of the scattering centre. The scattering centre is shown as a grey dot and its position is specified through axes (x, y) oriented as in panel (a). Point C is the intersection of the plane orthogonal to the y axis and passing though a point (x, y). (b) A magnified view of panel (a), in which the distances L′, L1 and L2 are defined. |