Optimizing Sample Illumination Scanning inTransmission Tomographic Diffractive Microscopy
2021
Due to the sequential nature of data acquisition, it is preferable
to limit the number of illuminations to be used in tomographic diffractive
microscopy experiments, especially if fast imaging is foreseen. On the
other hand, for high-quality, high-resolution imaging, the Fourier space
has to be optimally filled. Up to now, the problem of optimal Fourier
space filling has not been investigated in itself. In this paper, we
perform a comparative study to analyze the effect of sample scanning
patterns on Fourier space filling for a transmission setup. Optical
transfer functions for several illumination patterns are studied.
Simulation as well as experiments are conducted to compare associated
image reconstructions. We found that 3D uniform angular sweeping best
fills the Fourier space, leading to better quality images.
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