Aliasing, coherence, and resolution in a lensless holographic microscope.
Temitope E Agbana
Hai Gong
Abena S Amoah
Vitaly Bezzubik
Michel Verhaegen
Gleb Vdovin
Optics letters
PubMedID: 28614329
Agbana TE, Gong H, Amoah AS, Bezzubik V, Verhaegen M, Vdovin G. Aliasing, coherence, and resolution in a lensless holographic microscope. Opt Lett. 2017;42(12):2271-2274.
We have shown that the maximum achievable resolution of an in-line lensless holographic microscope is limited by aliasing and, for collimated illumination, cannot exceed the camera pixel size. This limit can be achieved only when the optimal conditions on the spatial and temporal coherence state of the illumination are satisfied. The expressions defining the configuration, delivering maximum resolution with given spatial and temporal coherence of the illumination, are obtained. The validity of these conditions is confirmed experimentally.
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