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