Work

Robust broadband ptychography algorithms for high-harmonic soft X-ray supercontinua

Year: 2024

Type: article

Abstract: We demonstrate PaCMAN, a ptychography algorithm that can reconstruct high quality images with broadband illumination sources while being robust to shot, detector, and parasitic noise. We extend prior monochromatization work to improve accuracy, especially for discrete spectra, and also demonstrate how PaCMAN can be converted into Ms. PaCMAN, a multi-spectral variant that outperforms multi-spectral ePIE. When comparing speed-optimized ePIE and PaCMAN, we achieve high reconstruction quality in 4x less time, and when they are dose-optimized, we achieve high reconstruction quality in 1.5-2x less dose. These algorithms will enable rapid sub-10 nm imaging with table-top soft X-ray high harmonic supercontinua, advance attosecond coherent diffractive imaging, and reduce the dose needed to image radiation sensitive materials.

Source: Optics Express

DOI: 10.1364/oe.541675

Authors: Benjamin Shearer, Henry Kapteyn, Iona Binnie, Nicholas W. Jenkins, Margaret Murnane

Institution: Kapteyn Murnane Laboratories

Language: English

Topic: Advanced X-ray Imaging Techniques

Subfield: Radiation

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: Gordon and Betty Moore Foundation, Multidisciplinary University Research Initiative