Research Summary

Main Research Fields

• Interdisciplinary Science & Engineering

Related Research Fields

• Engineering
• Chemistry
• Informatics
• Quantum beam science
• Material engineering
• Nano/Micro science

Keywords

• X-ray Imaging
• Coherent Diffraction Imaging
• Ptychography
• Materials Science

Selected Publications

• 1. Uematsu, H., Ishiguro, N., Abe, M., Takazawa, S., Kang, J., Hosono, E., Nguyen, N. D., Dam, H. C., Okubo, M, and Takahashi, Y.:
  "Visualization of Structural Heterogeneities in Particles of Lithium Nickel Manganese Oxide Cathode Materials by Ptychographic X-ray Absorption Fine Structure"
  The Journal of Physical Chemistry Letters 12, 5781–5788 (2021).
• 2. Takazawa, S., Kang, J., Abe, M., Uematsu, H., Ishiguro, N., and Takahashi, Y.:
  "Demonstration of single-frame coherent X-ray diffraction imaging using triangular aperture: Towards dynamic nanoimaging of extended objects"
  Optics Express 29, 14394-14402 (2021).
• 3. Ishiguro, N., Higashino, T., Hirose, M., and Takahashi, Y.:
  "Nanoscale Visualization of Phase Transition in Melting of Sn-Bi Particles by In situ Hard X-ray Ptychographic Coherent Diffraction Imaging"
  Microscopy and Microanalysis 26, 878-885 (2020).
• 4. Hirose, M., Shimomura, K., Higashino, T., Ishiguro, N., and Takahashi, Y.:
  "Nanoscale determination of interatomic distance by ptychography-EXAFS method using advanced Kirkpatrick-Baez mirror focusing optics"
  Journal of Synchrotron Radiation 27, 455-461 (2020).
• 5. Hirose, M., Higashino, T., Ishiguro, N., and Takahashi, Y.:
  "Multibeam ptychography with synchrotron hard X-rays"
  Optics Express 28, 1216-1224 (2020).
• 6. Hirose, M., Ishiguro, N., Shimomura, K., Nguyen, D.-N., Matsui, H., Dam, H. C., Tada, M., and Takahashi, Y.:
  "Oxygen-diffusion-driven oxidation behavior and tracking areas visualized by X-ray spectro-ptychography with unsupervised learning"
  Communications Chemistry 2, 50 (2019).
• 7. Shimomura, K., Hirose, M., Higashino, T., and Takahashi, Y.:
  "Three-dimensional iterative multislice reconstruction for ptychographic X-ray computed tomography"
  Optics Express 26, 31199-31208 (2018).
• 8. Hirose, M., Ishiguro, N., Shimomura, K., Burdet, N., Matsui, H., Tada, M., and Takahashi, Y.:
  "Visualization of Heterogeneous Oxygen Storage Behavior in Platinum-Supported Cerium-Zirconium Oxide Three-Way Catalyst particles by Hard X-ray Spectro-Ptychography"
  Angewandte Chemie International Edition 130, 1490-1495 (2018).
• 9. Shimomura, K., Hirose, M., and Takahashi, Y.:
  "Multislice imaging of integrated circuits by precession X-ray ptychography"
  Acta Crystallographica Section A 74, 66-70 (2018).
• 10. Hirose, M., Shimomura, K., Burdet, N., and Takahashi, Y.:
  "Use of Kramers-Kronig relation in phase retrieval calculation in X-ray spectro-ptychography"
  Optics Express 25, 8593-8603 (2017).

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