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 …

Nondestructive, high-resolution, chemically specific 3D nanostructure characterization using phase-sensitive EUV imaging reflectometry

M Tanksalvala, CL Porter, Y Esashi, B Wang… - Science …, 2021 - science.org
Next-generation nano-and quantum devices have increasingly complex 3D structure. As the
dimensions of these devices shrink to the nanoscale, their performance is often governed by …

Tailoring spatial entropy in extreme ultraviolet focused beams for multispectral ptychography

L Loetgering, X Liu, ACC De Beurs, M Du, G Kuijper… - Optica, 2021 - opg.optica.org
Diffractive optics can be used to accurately control optical wavefronts, even in situations
where refractive components such as lenses are not available. For instance, conventional …

Wavelength-multiplexed multi-mode EUV reflection ptychography based on automatic differentiation

Y Shao, S Weerdenburg, J Seifert, HP Urbach… - Light: Science & …, 2024 - nature.com
Ptychographic extreme ultraviolet (EUV) diffractive imaging has emerged as a promising
candidate for the next generationmetrology solutions in the semiconductor industry, as it can …

Tabletop extreme ultraviolet reflectometer for quantitative nanoscale reflectometry, scatterometry, and imaging

Y Esashi, NW Jenkins, Y Shao, JM Shaw… - Review of Scientific …, 2023 - pubs.aip.org
Imaging using coherent extreme-ultraviolet (EUV) light provides exceptional capabilities for
the characterization of the composition and geometry of nanostructures by probing with high …

Table-top nanoscale coherent imaging with XUV light

J Rothhardt, GK Tadesse, W Eschen… - Journal of Optics, 2018 - iopscience.iop.org
Modern laser-based XUV light sources provide very high photon fluxes which have
previously only been available at large scale facilities. This allows high-performance XUV …

Temporal and spectral multiplexing for EUV multibeam ptychography with a high harmonic light source

NJ Brooks, B Wang, I Binnie, M Tanksalvala… - Optics …, 2022 - opg.optica.org
We demonstrate temporally multiplexed multibeam ptychography implemented for the first
time in the EUV, by using a high harmonic based light source. This allows for simultaneous …

Three-dimensional single-shot ptychography

D Goldberger, J Barolak, CG Durfee, DE Adams - Optics Express, 2020 - opg.optica.org
Here we introduce three-dimensional single-shot ptychography (3DSSP). 3DSSP leverages
an additional constraint unique to the single-shot geometry to deconvolve multiple 2D …

Wavelength-multiplexed single-shot ptychography

J Barolak, D Goldberger, J Squier, Y Bellouard… - Ultramicroscopy, 2022 - Elsevier
We present the first experimental demonstration of wavelength-multiplexing in single-shot
ptychography. Specifically, we experimentally reconstruct the complex transmission profile …

aPIE: an angle calibration algorithm for reflection ptychography

A de Beurs, L Loetgering, M Herczog, M Du… - Optics Letters, 2022 - opg.optica.org
Reflection ptychography is a lensfree microscopy technique particularly promising in regions
of the electromagnetic spectrum where imaging optics are inefficient or not available. This is …