Advances in laboratory-scale ptychography using high harmonic sources

L Loetgering, S Witte, J Rothhardt - Optics Express, 2022 - opg.optica.org
Extreme ultraviolet microscopy and wavefront sensing are key elements for next-generation
ultrafast applications, such as chemically-resolved imaging, focal spot diagnostics in pump …

Cold plasma: A promising technology for improving the rheological characteristics of food

R Kaavya, R Pandiselvam, M Gavahian… - Critical Reviews in …, 2023 - Taylor & Francis
At the beginning of the 21st century, many consumers show interest in purchasing safe,
healthy, and nutritious foods. The intent requirement of end-users and many food product …

Material-specific high-resolution table-top extreme ultraviolet microscopy

W Eschen, L Loetgering, V Schuster, R Klas… - Light: Science & …, 2022 - nature.com
Microscopy with extreme ultraviolet (EUV) radiation holds promise for high-resolution
imaging with excellent material contrast, due to the short wavelength and numerous element …

Controlling photon transverse orbital angular momentum in high harmonic generation

Y Fang, S Lu, Y Liu - Physical Review Letters, 2021 - APS
High harmonic generation (HHG) with longitudinal optical orbital angular momentum has
attracted much attention over the past decade. Here, we present the first study on the HHG …

Visualizing the ultra-structure of microorganisms using table-top extreme ultraviolet imaging

C Liu, W Eschen, L Loetgering, DS Penagos Molina… - PhotoniX, 2023 - Springer
Table-top extreme ultraviolet (EUV) microscopy offers unique opportunities for label-free
investigation of biological samples. Here, we demonstrate ptychographic EUV imaging of …

High-fidelity ptychographic imaging of highly periodic structures enabled by vortex high harmonic beams

B Wang, NJ Brooks, PC Johnsen, NW Jenkins… - arXiv preprint arXiv …, 2023 - arxiv.org
Ptychographic Coherent Diffractive Imaging enables diffraction-limited imaging of nanoscale
structures at extreme ultraviolet and x-ray wavelengths, where high-quality image-forming …

PtyLab. m/py/jl: a cross-platform, open-source inverse modeling toolbox for conventional and Fourier ptychography

L Loetgering, M Du, D Boonzajer Flaes, T Aidukas… - Optics …, 2023 - opg.optica.org
Conventional (CP) and Fourier (FP) ptychography have emerged as versatile quantitative
phase imaging techniques. While the main application cases for each technique are …

High-resolution wavefront sensing and aberration analysis of multi-spectral extreme ultraviolet beams

M Du, X Liu, A Pelekanidis, F Zhang, L Loetgering… - Optica, 2023 - opg.optica.org
Coherent multi-spectral extreme ultraviolet beams have great potential for providing high
spatial and temporal resolution for microscopy and spectroscopy applications. But due to the …

Structured illumination ptychography and at-wavelength characterization with an EUV diffuser at 13.5 nm wavelength

W Eschen, C Liu, M Steinert, DS Penagos Molina… - Optics …, 2024 - opg.optica.org
Structured illumination is essential for high-performance ptychography. Especially in the
extreme ultraviolet (EUV) range, where reflective optics are prevalent, the generation of …

Probing three-dimensional mesoscopic interfacial structures in a single view using multibeam X-ray coherent surface scattering and holography imaging

M Chu, Z Jiang, M Wojcik, T Sun, M Sprung… - Nature …, 2023 - nature.com
Visualizing surface-supported and buried planar mesoscale structures, such as
nanoelectronics, ultrathin-film quantum dots, photovoltaics, and heterogeneous catalysts …