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In situ coherent diffractive imaging.

Yuan Hung Lo1,2, Lingrong Zhao1,3, Marcus Gallagher-Jones1

  • 1Department of Physics and Astronomy, and California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA.

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|May 10, 2018
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Summary
This summary is machine-generated.

We developed a new in situ Coherent Diffractive Imaging (CDI) method for real-time visualization of dynamic processes in solution. This technique enables high spatiotemporal resolution imaging with reduced radiation dose.

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Area of Science:

  • Physics
  • Chemistry
  • Biology
  • Materials Science

Background:

  • Coherent Diffractive Imaging (CDI) is crucial for high spatiotemporal resolution studies.
  • Existing CDI methods face challenges in imaging dynamic processes in solution.

Purpose of the Study:

  • To develop a general in situ CDI method for real-time imaging of dynamic processes in solution.
  • To enhance the speed and robustness of dynamic process reconstruction.

Main Methods:

  • Introduced a time-invariant overlapping region as a real-space constraint.
  • Simultaneously reconstructed time series of complex exit waves.
  • Validated using optical laser experiments and numerical simulations with coherent X-rays.

Main Results:

  • Achieved robust and fast convergence for dynamic process reconstruction.
  • Demonstrated the method's efficacy in optical laser experiments and X-ray simulations.
  • Numerical simulations suggest potential for >10x reduction in radiation dose compared to conventional CDI.

Conclusions:

  • The developed in situ CDI method offers a powerful tool for real-time imaging of dynamic phenomena in solution.
  • This technique has the potential to significantly reduce radiation dose, enabling new scientific investigations.
  • Further development could expand its application to a wide range of dynamic processes.