9 citations · 19 across the 8 of their papers we have counts for
8 papers
Paraxial diffusion-field retrieval. II. Fokker-Planck generalization of the transport-of-intensity equation
David M. Paganin, Kaye S. Morgan
The transport-of-intensity equation (TIE), namely the continuity equation associated with a coherent paraxial optical wavefield, is widely used for phase retrieval. It is a second-…
Signal-to-noise and spatial resolution in in-line imaging. 3. Optimization using a simple model
T. E. Gureyev, D. M. Paganin, H. M. Quiney
The problem of optimization of propagation-based phase-contrast imaging setups is considered in the case of projection X-ray imaging and three-dimensional tomography with phase ret…
Neutron Beam Shaping by Ghost Projection
Andrew M. Kingston, Alaleh Aminzadeh, Lindon Roberts +5
We present a method to shape a neutron beam and project any specified target image using a single universal patterned mask that is transversely displaced. The method relies on ``gh…
Signal-to-noise and spatial resolution in in-line imaging. 1. Basic theory, numerical simulations and planar experimental images
T. E. Gureyev, D. M. Paganin, H. M. Quiney
Signal-to-noise ratio and spatial resolution are quantitatively analysed in the context of in-line (propagation based) X-ray phase-contrast imaging. It is known that free-space pro…
Diffuse arrays that autocorrelate and project as delta-like points
I. D. Svalbe, D. M. Paganin, T. C. Petersen
Diffuse two-dimensional integer-valued arrays are demonstrated that have delta-like aperiodic autocorrelation and, simultaneously, the array sums form delta-like projections along…
Factors limiting quantitative phase retrieval in atomic-resolution differential phase contrast scanning transmission electron microscopy using a segmented detector
T. Mawson, D. J. Taplin, H. G. Brown +10
Quantitative differential phase contrast imaging of materials in atomic-resolution scanning transmission electron microscopy using segmented detectors is limited by various factors…
Extending the known families of scalable Huffman sequences
T. C. Petersen, D. M. Paganin, I. D. Svalbe
A canonical Huffman sequence is characterized by a zero inner-product between itself and each of its shifted copies, except at their largest relative shifts: their aperiodic auto-c…
Diffraction catastrophes threaded by quantized vortex skeletons caused by atom-optical aberrations induced in trapped Bose-Einstein condensates
T. P. Simula, T. C. Petersen, D. M. Paganin
We propose a nonlinear atom-optics experiment to create diffraction catastrophes threaded by quantized vortex skeletons in Bose-Einstein condensed matter waves. We show how atom-op…