Richard Barakat and Barbara H Sandler 1999 J. Opt. A: Pure Appl. Opt. 1 629 doi:10.1088/1464-4258/1/5/309
Simultaneous determination of the modulus and phase of a coherently illuminated object from its measured diffraction image
Richard Barakat
and Barbara H Sandler
An algorithm for recovering the modulus and phase of a coherently illuminated object from its measured diffraction image is presented. The algorithm is based upon the fact that both the Jacobian and Hessian matrices can be evaluated exactly so that both slope and curvature information is available. The inversion problem is cast as a nonlinear unconstrained optimization problem, and trust region techniques are employed for its solution. Representative numericals are presented.
- PACS
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42.30.Wb Image reconstruction; tomography
- Subjects
- Dates
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Issue 5 (September 1999)
Received 23 March 1999
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Simultaneous determination of the modulus and phase of a coherently illuminated object from its measured diffraction image
Richard Barakat and Barbara H Sandler 1999 J. Opt. A: Pure Appl. Opt. 1 629
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