| System and Method for Recovering Phase Information of a Wave Front |
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Overview This invention is generally directed to a system and method for recovering wave front phase information and using the recovered information for display, and more particularly to a system and method for determining the phase function from measured intensity information. Although the preferred embodiment of the invention is described in terms of recovering phase information for a wave front in the visible electromagnetic spectrum, the present invention is not so limited and can also be applied to other regions of the spectrum, such as x-ray, infrared, electron microscopy, sonar, etc. Generally, the method is effective in any context in which the scalar wave equation yields a sufficiently accurate picture of the physics of a context. In addition, one needs a physical mechanism of altering the phase of the wave at the object/diffraction plane in a known way to yield different synthesized intensities in the downstream diffraction/image plane.
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