Laboratories
Song Initiative Research Unit
Changyong SONG
Initiative Research Scientist
Changyong SONG (Ph.D.)
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Research Areas

Coherent x-ray diffraction imaging is a burgeoning field directed toward determining the 3D structure of noncrystalline specimens at atomic resolution. Currently we are working to develop 3D x-ray diffraction microscopy that will shine new light in nano- and bio-technology at the nanometer resolution. With the emergent x-ray free electron lasers, the coherent x-ray diffraction imaging technique expects to find its ultimate application in imaging single macromolecules at near atomic resolution.

Research Subject

  1. Resonant coherent x-ray diffraction imaging with elemental specificity
  2. High resolution 3D imaging of biological specimens and nano-structures
  3. High contrast coherent diffraction imaging with FELs

Related links

  1. RIKEN SPring-8 Center Website_Laboratories PageNew Window

RIKEN RESEARCH

February 16,2009
A penetrating view of viruses
The powerful x-rays from a RIKEN synchrotron can provide high-contrast images of biological specimens New Window

List of Selected Publications

  1. H. Jiang, C. Song,T. Ishikawa, J. Miao et al.,
    "Quantitative 3D imaging of whole, unstained cells by using X-ray diffraction microscopy"
    Proc. Natl. Acad. Sci. USA, 107, 11234 (2010).
  2. C. Song, H. Jiang, A. P. Mancuso, B. Amirbekian, L. Peng, R. Sun, S. S Shah, Z. H. Zhou, T. Ishikawa, and J. Miao
    "Quantitative imaging of single, unstained viruses with coherent X-rays"
    Phys. Rev. Lett., 101, 158101 (2008)
  3. C. Song, R. Bergstrom, D. Ramunno-Johnson, H. Jiang, D. Paterson, M. D. de Jonge, I. McNulty, J. Lee, K. Wang, and J. Miao
    "Nanoscale imaging of buried structures with elemental specificity using resonant x-ray diffraction microscopy"
    Phys. Rev. Lett., 100, 025504 (2008)
  4. R. L. Sandberg, C. Song, P. W. Wachulak, D. A. Raymondson, A. Paul, B. Amirbekian, E. Lee, A. E. Sakdinawat, M. C. Marconi, C. S. Menoni, M. M. Murnane, J. J. Rocca, H. C. Kapteyn, and J. Miao
    "High numerical aperture tabletop soft x-ray diffraction microscopy with 70 nm resolution"
    Proc. Natl. Acad. Sci. USA, 105, 24 (2008)
  5. C. Song, D. Ramunno-Johnson, Y. Nishino, Y. Kohmura, C.-C. Chen, T.-K. Lee, T. Ishikawa, and J. Miao
    "Phase retrieval from exactly oversampled diffraction intensity through deconvolution"
    Phys. Rev. B, 75, 0120102 (2007)
  6. R. L. Sandberg, A. Paul, D. A. Raymondson, S. Hadrich, D. M. Gaudiosi, J. Holtsnider, R. I. Tobey, O. Cohen, M. Murnane, H. C. Kapteyn, C. Song, J. Miao, Y. Liu, and F. Salmassi
    "Lensless diffractive imaging using tabletop, coherent, high harmonic soft x-ray beams"
    Phys. Rev. Lett., 99, 98103 (2007)
  7. H. Jiang, D. Ramunno-Johnson, C. Song, B. Amirbekian, Y. Kohmura, Y. Nishino, Y. Takahashi, T. Ishikawa, and J. Miao
    "Nanoscale imaging of mineral crystals inside biological composite materials using x-ray diffraction microscopy"
    Phys. Rev. Lett., 100, 038103 (2008)
  8. J. Miao, C.-C. Chen, C. Song, Y. Nishino, Y. Kohmura, T. Ishikawa, D. Ramunno-Johnson, T.-K. Lee, and S. H. Risbud
    "Three-dimensional GaN-Ga2O3 core-shell structure revealed by x-ray diffraction microscopy"
    Phys. Rev. Lett., 97, 215503 (2006)
  9. J. Miao, Y. Nishino, Y. Kohmura, B. Johnson, C. Song, S. Risbud, and T. Ishikawa
    "Quantitative image reconstruction of GaN quantum dot from oversampled diffraction intensities alone"
    Phys. Rev. Lett., 95 85503 (2005)

Members

Principal Investigator

Changyong SONG
Initiative Research Scientist

Staff Scientist

Sangsoo KIM
Research Scientist

Postdoctoral Fellow

Jae Hyun PARK
Postdoctoral Researcher
Sunam KIM
Postdoctoral Researcher

Student Trainee

Daewoong NAM
International Program Associate