Digital holography catching up with analogue holography both in resolution and in field of view with a bottom-line camera

摘要

Digital holography seems not to have exploited fully or at all the two most straightforward possibilities of overcoming the basic physical shortcomings of the electronic cameras. The limited detector target size can be extended by producing a synthesized aperture with camera scanning - directly in the aerial hologram plane and in the conventional off-axis arrangement, too. On the other hand, the limited pixel size can be extended by a demagnifying microscope objective - although it has to be combined immediately with some synthesized aperture extension, too.