Half-magnitude extensions of resolution and field of view in digital holography by scanning and magnification.
Digital holography replaces the permanent recording material of analog holography with an electronic light sensitive matrix detector, but besides the many unique advantages, this brings serious limitations with it as well. The limited resolution of matrix detectors restricts the field of view, and their limited size restricts the resolution in the reconstructed holographic image. Scanning the larger aerial hologram (the interference light field of the object and reference waves in the hologram plane) with the small matrix detector or using magnification for the coarse matrix detector at the readout of the fine-structured aerial hologram, these are straightforward solutions but have been exploited only partially until now. We have systematically applied both of these approaches and have driven them to their present extremes, over half a magnitude in extensions.
Gyímesi
Ferenc
F
Budapest University of Technology and Economics, Department of Physics, Budafoki út 8, 1111 Budapest, Hungary. gyimesif@goliat.eik.bme.hu
Füzessy
Zoltán
Z
Borbély
Venczel
V
Ráczkevi
Béla
B
Molnár
György
G
Czitrovszky
Aladár
A
Tibor Nagy
Attila
A
Molnárka
Gyozo
G
Lotfi
Abdelhakim
A
Nagy
Attila
A
Harmati
István
I
Szigethy
Dezso
D