A novel method of determining phase from a modulated intensity pattern
is described. A line integral of the gradient of the phase is used to reconstruct
the phase, eliminating the necessity for complex methods of phase unwrapping.
The new algorithm can be used with any technique that experimentally or theoretically
yields the cosine and sine or the tangent of the phase. This phase-reconstruction
process works effectively even in the regions of high-intensity gradients
and is insensitive to the profile of the illuminating beams and to the shape
of the domain boundaries.
© 1997 Optical Society of America
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