Investigation of angular multiplexing and de-multiplexing of digital holograms recorded in microscope configuration.
We investigated a method for the angular multiplexing and de-multiplexing of digital holograms recorded in microscope off-axis configuration. The multiplexing has been performed rotating numerically one hologram at different angles and adding all the rotated holograms to obtain a single synthetic digital hologram. Then the digital holograms were de-multiplexed thanks to the unique property of the digital holography to manage numerically the complex wavefields at different image planes. We show that it is possible to retrieve correctly quantitative information about the amplitude and phase maps. The obtained results can be useful to employ the multiplexing technique during the recording process by rotating the CCD array.
Paturzo
M
M
CNR - Istituto Nazionale di Ottica Applicata & Istituto di Cibernetica, via Campi Flegrei 34, 80078-Pozzuoli (NA), Italy. melania.paturzo@inoa.it
Memmolo
P
P
Tulino
A
A
Finizio
A
A
Ferraro
P
P
D000465:Algorithms; D006696:Holography / Q000379:methods*; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008853:Microscopy / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted