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Detective quantum efficiency based comparison of HRTEM and ptychography phase imaging
Felix Bennemann, Angus I. Kirkland, David A. Muller, Peter Nellist
https://arxiv.org/abs/2509.12037

Detective quantum efficiency based comparison of HRTEM and ptychography phase imaging
High-resolution transmission electron microscopy (HRTEM) is an important method for imaging beam sensitive materials often under cryo conditions. Electron ptychography in the scanning transmission electron microscope (STEM) has been shown to reconstruct low-noise phase data at a reduced fluence for such materials. This raises the question of whether ptychography or HRTEM provides a more fluence-efficient imaging technique. Even though the transfer function is a common metric for evaluating the …