.Application of eliminating zero-order diffraction light in wavefront reconstruction of inverse diffraction computation[J].Optoelectronics Letters,2006,2(5):379-382 |
Application of eliminating zero-order diffraction light in wavefront reconstruction of inverse diffraction computation |
LI Jun-chang PENG Zu-jie CHEN Jin-bo |
Kunming University of Science and Technology, Kunming 650093, P. R. China |
Abstract: |
According to the Collins formula and its inverse diffraction computation, this paper presents an algorithm for reconstructing
the object wavefront of a numerical holograph. To improve the quality of wavefront reconstruction, a technique of eliminating
the zero-order diffraction light is introduced, which is achieved by subtraction of two intensities of the interference patterns.
The computer simulation and image processing show that the method of eliminating the zero-order diffraction beam can be applied
to the wavefront reconstruction of inverse diffraction computation.
Supported by the Natural Science Foundation of Yunnan Province (2004F0025M) |
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