Wavefront Coded Zone Plates

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Wavefront coded zone plates (WCZP) are being used to extend depth of field in the full-field soft x-ray microscope. Currently, WCZPs with a cubic phase
(as shown in figure 3) have been made and experiments at the full-field soft x-ray microscope
are being performed.

Fig. 3: Simulations used in the design of the wavefront coded zone plates (WCZP) (a) a regular zone plate, (b) cubic phase, (c) combination of the regular zone plate and the cubic phase to make the WCZP, (d) a binarized version of the WCZP. (Click on the image to view the full-size version)