A new reconstruction algorithm for phase-object imaging is proposed that is based on the principle of diffraction tomography and utilizes the Fourier transformation property of a finite-size phase object. From the measured scattered intensity, the imaginary part of the Fourier transform of the object can be extracted, and the three-dimensional structure of the object can be reconstructed. Numerical simulations show that the algorithm also can be used for a weak absorption object if the phase shift is much larger than the absorption.
© 2001 Optical Society of America
(050.1940) Diffraction and gratings : Diffraction
(100.3010) Image processing : Image reconstruction techniques
(100.5070) Image processing : Phase retrieval
(110.6960) Imaging systems : Tomography
Jing Cheng and Shensheng Han, "Diffraction tomography reconstruction algorithms for quantitative imaging of phase objects," J. Opt. Soc. Am. A 18, 1460-1464 (2001)