Potential Coherent X-Ray Imaging Experiments

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Potential Coherent X-Ray Imaging Experiments

• Extension of DIC Microscopy into the X-Ray
  Wavelength
• Fourier optical element to replace
  micro-zoneplate, same amount of elements as
  traditional TXM.
• Advantages
• Existing apparatus design readily applicable.
• Extend x-ray microscopy to weakly absorbing
  phase objects.
• Easier alignment than Zernike phase contrast.
• Disadvantages
• Not readily quantitative for complex samples.
• The amount of lateral shift and bias retardation
  can be arbitrarily designed into the
  nanostructure, though not tunable on-the-fly.
• Off-axis X-Ray Holography Stanford
• Demonstrated in SLAC 2005
• Advantages
• Fully quantifiable absorption and phase
• Disadvantages
• Dedicated sample holder required.
• Sample in vacuum? New experimental apparatus
  needed?
• Potential Application Area
• Biological specimens phase object in x-ray
• Magnetic materials polarization-sensitive phase
  studies