Ptychographic CTF
Contrast-transfer function for ptychographic phase imaging.
Ptychographic Sampling
Real- vs reciprocal-space sampling trade-offs in 4D-STEM.
Ptychographic Coherence
Partial-coherence and finite-source effects on reconstruction.
Direct Ptychography
Single-sideband reconstruction, one trotter at a time, on simulated STO datasets.
Parallax Aberration Surface
Tilt-corrected bright-field parallax: match the aberration surface to align and super-resolve.
Parallax / Ptychography Alignment
Align a virtual bright-field stack, then deconvolve it three ways: parallax shift, phase flip, and full ptychographic Wiener.
FF-STEM SSNR
Spectral SNR / DQE: ptychography vs ADF vs full-field STEM.
STEM Measurements
Form a probe over a projected potential and watch the diffraction intensity.
Plane-wave Imaging
Plane-wave HRTEM: objective-lens CTF, toggling real-space image and diffraction.
Parallax Virtual Bright Fields
Tilted-illumination virtual bright fields: defocus × tilt parallax on an ice-embedded protein.