“…4-7, with transversal dimensions that almost perfectly match those of the real objects down to 40 m. As a final remark, we note that the results for case (b) are better in quality than those for case (a), because the holographic image is real and hence there is no need for any optical element to image it. Scheme (b) is thus more suitable for applications, among which we mention optical phase conjugation, 10,19,24,25 that can be used for recovering wave fronts from aberrations. 20,26,27 Fig .…”