Linearity and Optimum-Sampling in Photon-Counting Digital Holographic Microscopy
نویسندگان
چکیده
In the image plane configurations frequently used in digital holographic microscopy (DHM) systems, interference patterns are captured by a photo-sensitive array detector located at of an input object. The object information these is localized and thus extremely sensitive to phase errors caused nonlinear hologram recordings (grating profiles either square or saturated sinusoidal) inadequate sampling regarding coverage (undersampled around Nyquist frequency arbitrarily oversampled). Here, we propose solution for both recording problems through implementing photon-counting (PCD) mounted on motorized XY translation stage. such way, inherently linear (because wide dynamic range PCD) optimum sampled (due adjustable steps) holograms configuration recorded. Optimum estimated based numerical analysis. validity proposed approach confirmed experimentally.
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ژورنال
عنوان ژورنال: Photonics
سال: 2022
ISSN: ['2304-6732']
DOI: https://doi.org/10.3390/photonics9020068