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High-Performance Ptychographic Reconstruction with Federated Facilities [article]

Tekin Bicer, Xiaodong Yu, Daniel J. Ching, Ryan Chard, Mathew J. Cherukara, Bogdan Nicolae, Rajkumar Kettimuthu, Ian T. Foster
2021 arXiv   pre-print
Typically, these facilities are equipped only with modest compute resources for the analysis of generated experimental datasets.  ...  When deployed on the DGX A100 ThetaGPU cluster at the Argonne Leadership Computing Facility and a microscopy beamline at the Advanced Photon Source, our system performs analysis as an experiment progresses  ...  This research used resources of the Argonne Leadership Computing Facility and Advanced Photon Source, which are U.S.  ... 
arXiv:2111.11330v1 fatcat:kjp727sslfbwvcnj3pz3lsan3e

Wavelength-scale ptychographic coherent diffractive imaging using a high-order harmonic source

Getnet K. Tadesse, Wilhelm Eschen, Robert Klas, Maxim Tschernajew, Frederik Tuitje, Michael Steinert, Matthias Zilk, Vittoria Schuster, Michael Zürch, Thomas Pertsch, Christian Spielmann, Jens Limpert (+1 others)
2019 Scientific Reports  
In this work, resolving features as small as 2.5 λ (45 nm) using a table-top ptychography setup is demonstrated by employing a high-order harmonic XUV source with record-high photon flux.  ...  Previously, it was only possible to image features much larger than the illuminating wavelength with table-top ptychography although knife-edge tests suggested sub-wavelength resolution.  ...  Acknowledgements The Authors acknowledge support from the Bundesministerium für Bildung und Forschung (BMBF) (05P2015), Federal State of Thuringia, European Social Fund (ESF) (2015 FGR 0094) and Fraunhofer  ... 
doi:10.1038/s41598-019-38501-1 pmid:30742029 pmcid:PMC6370773 fatcat:26lr5pgvsjec7he5i2sz7gqbeq

Ptychographic characterisation of polymer compound refractive lenses manufactured by additive technology

M. Lyubomirskiy, F. Koch, K. A. Abrashitova, V. O. Bessonov, N. Kokareva, A. Petrov, F. Seiboth, F. Wittwer, M. Kahnt, M. Seyrich, A. A. Fedyanin, C. David (+1 others)
2019 Optics Express  
The recent success in the development of high precision printing techniques allows one to manufacture free-standing polymer structures of high quality.  ...  Two-photon polymerization lithography is a mask-less technique with down to 100 μm resolution that provides full geometric freedom.  ...  We acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities.  ... 
doi:10.1364/oe.27.008639 fatcat:as77agpi6bhwdlqdzask3g2vfu

High speed and high resolution table-top nanoscale imaging

G. K. Tadesse, R. Klas, S. Demmler, S. Hädrich, I. Wahyutama, M. Steinert, C. Spielmann, M. Zürch, T. Pertsch, A. Tünnermann, J. Limpert, J. Rothhardt
2016 Optics Letters  
The high photon flux, narrow spectral bandwidth and high degree of spatial coherence allow for ultra-high sub-wavelength resolution imaging at a high numerical aperture.  ...  Thus, table-top nanoscopes with only a few-nm resolutions are in reach and will find applications in many areas of science and technology.  ...  In addition, curvature correction of the measured diffraction pattern was performed due to the high numerical aperture of the setup.  ... 
doi:10.1364/ol.41.005170 pmid:27842085 fatcat:up4ziixlqzfhfejmloa3s3wge4

Table-top nanoscale coherent imaging with XUV light

Jan Rothhardt, Getnet K Tadesse, Wilhelm Eschen, Jens Limpert
2018 Journal of Optics  
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 nanoscale imaging to be implemented in a table-top manner, and thus qualifies XUV imaging as a novel imaging technique complementing electron and visible-light microscopy  ...  Acknowledgments This work was supported by the Fraunhofer Cluster of Excellence Advanced Photon Sources, the Federal State of Thuringia (2015 FGR 0094) and the European Social Fund (ESF).  ... 
doi:10.1088/2040-8986/aae2d8 fatcat:ozuarusmerftxn5kb2frdcm27u

Manifold learning of four-dimensional scanning transmission electron microscopy

Xin Li, Ondrej E. Dyck, Mark P. Oxley, Andrew R. Lupini, Leland McInnes, John Healy, Stephen Jesse, Sergei V. Kalinin
2019 npj Computational Materials  
approaches for straightforward visualization and exploration analysis of the 4D-STEM datasets, distilling real-space neighboring effects on atomically resolved deflection patterns from single-layer graphene, with  ...  Ptychographic electron microscopy using high-angle dark-field scattering for sub-nanometre resolution imaging. Nat. Commun. 3, 730 (2012). 8. Gao, S. et al.  ...  With a clear manifold layout, based on visual inspection on manifold layout, we can simply perform spectral clustering30 with 7 clusters (Figure 2a).  ... 
doi:10.1038/s41524-018-0139-y fatcat:yy7h5mg52zhgvcxpppkml4e4ie

Perspective: Towards single shot time-resolved microscopy using short wavelength table-top light sources

T. Helk, M. Zürch, C. Spielmann
2019 Structural Dynamics  
We evaluate the performance of currently available table-top sources, with special emphasis on applications, photon flux, and coherence.  ...  With a flux high enough for single shot imaging, 86 the facility offers beamlines with high repetition rates and stable attosecond XUV/SXR-pulses [87] [88] [89] for spectroscopic and imaging applications  ...  The first 3D reconstruction of a processor structure performed by Holler et al. 37 at a synchrotron showcases the extraordinary capabilities of XUV/SXR-imaging offers for the industry [ Fig. 4 (II)  ... 
doi:10.1063/1.5082686 pmid:30868083 pmcid:PMC6404932 fatcat:6g5vetjpmjdbhnvhbgwzjheugi

Front Matter: Volume 8141

Proceedings of SPIE, Manuel Sanchez del Rio, Oleg Chubar
2011 Advances in Computational Methods for X-Ray Optics II Paper Numbering: Proceedings of SPIE follow an e-First publication model, with papers published first online and then in print and on CD-ROM.  ...  These two-number sets start with 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 0A, 0B ... 0Z, followed by 10-1Z, 20-2Z, etc. The CID number appears on each page of the manuscript.  ...  ACKNOWLEDGEMENTS The research performed in Dr. Ritman's Laboratory was funded in part by NIH grants HL65342 and EB000305. We also acknowledge the contributions from coworkers Drs.  ... 
doi:10.1117/12.914876 fatcat:irlhbnffcjhtjp7onymw4h364m

Tomographic reconstruction with a generative adversarial network

Xiaogang Yang, Maik Kahnt, Dennis Brückner, Andreas Schropp, Yakub Fam, Johannes Becher, Jan-Dierk Grunwaldt, Thomas L. Sheppard, Christian G. Schroer
The GAN has been developed to fit the input sinogram with the model sinogram generated from the predicted reconstruction.  ...  It was also validated by reconstructing a missing-wedge X-ray ptychographic tomography (PXCT) data set of a macroporous zeolite particle, for which only 51 projections over 70° could be collected.  ...  We thank Thomas Keller and Satishkumar Kulkarni of DESY Nanolab for assistance with FIB.  ... 
doi:10.5445/ir/1000115487 fatcat:rinhwkjpgbfxfgwbfggxcy2ctq

Perspective: Opportunities for ultrafast science at SwissFEL

Rafael Abela, Paul Beaud, Jeroen A. van Bokhoven, Majed Chergui, Thomas Feurer, Johannes Haase, Gerhard Ingold, Steven L. Johnson, Gregor Knopp, Henrik Lemke, Chris J. Milne, Bill Pedrini (+5 others)
2017 Structural Dynamics  
To overcome these drawbacks one may apply variants of hybrid (femto/pico) X-ray FWM techniques that, e.g., can be expressed in a way that allows for a direct ptychographic reconstruction of the system  ...  facilities.  ... 
doi:10.1063/1.4997222 pmid:29376109 pmcid:PMC5758366 fatcat:wgwz6fwq4vev7mhtlrifhut5sm

Materials characterization by synchrotron x-ray microprobes and nanoprobes

Lorenzo Mino, Elisa Borfecchia, Jaime Segura-Ruiz, Cinzia Giannini, Gema Martinez-Criado, Carlo Lamberti
2018 Reviews of Modern Physics  
., 2013) , with the innovative ptychographic coherent x-ray diffractive imaging (PCDI).  ...  An alternative tool to conventional coincidence techniques is the so-called covariance mapping, which is performed at FEL facilities.  ... 
doi:10.1103/revmodphys.90.025007 fatcat:reza7nkayvhtlchiy5mvjvm5xq

Dispersion engineered air-clad SiGe waveguides with low propagation loss in the mid-infrared

Milan Sinobad, Pan Ma, Barry Luther-Davies, David Allioux, Regis Orobtchouk, David. J. Moss, Stephen Madden, Salim Boutami, Jean-Marc Fedeli, Christelle Monat, Christian Grillet
2017 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)  
Based on ptychographic techniques, our method guarantees high accuracy and robustness with respect to experimental noise.  ...  We report on optical performance of a compact nano-structured gradient index micro-lenses. ese two-component systems which are rigidly integrated at ber end and used for generation of high-quality vortices  ...  light with high SNR.  ... 
doi:10.1109/cleoe-eqec.2017.8086482 fatcat:3h3thmltvnchlhrmbhpnsjj3my

Small- and wide-angle X-ray scattering microscopy applied to mudrocks

Leon Dominik Leu, Martin Blunt, Apostolos Georgiadis, Shell
It is challenging to resolve this heterogeneity on all relevant scales with analytical methods.  ...  The latest developments in synchrotron ptychographic X-ray imaging also allow high resolution imaging down to a physical resolution of 16 nm (Holler et al. 2014 ).  ...  Disposal of Radioactive Waste (NAGRA) and the Swiss Federal Office for Topography(SWISSTOPO).  ... 
doi:10.25560/54754 fatcat:dv4v7k7wxrbndktuaqxzepgkyq