Complex-wave retrieval from a single off-axis hologram.
We present a new digital two-step reconstruction method for off-axis holograms recorded on a CCD camera. First, we retrieve the complex object wave in the acquisition plane from the hologram's samples. In a second step, if required, we propagate the wave front by using a digital Fresnel transform to achieve proper focus. This algorithm is sufficiently general to be applied to sophisticated optical setups that include a microscope objective. We characterize and evaluate the algorithm by using simulated data sets and demonstrate its applicability to real-world experimental conditions by reconstructing optically acquired holograms.
Biomedical Imaging Group, Ecole Polytechnique Fédérale de Lausanne, Bâtiment de Microtechnique 4.127, CH-1015 Lausanne, Switzerland. michael.liebling@a3.epfl.ch
Michael
M
Liebling
Thierry
T
Blu
Michael
M
Unser