Advanced Photonics, Vol. 1, Issue 1, 016005 (2019)
Noniterative spatially partially coherent diffractive imaging using pinhole array mask
Xingyuan Lu1, Yifeng Shao2, Chengliang Zhao1,2,*, Sander Konijnenberg2, Xinlei Zhu1, Ying Tang2, Yangjian Cai1,3, and H. Paul Urbach2
- 1Soochow University, School of Physical Science and Technology, Suzhou, China
- 2Delft University of Technology, Optics Research Group, Delft, Netherlands
- 3Shandong Normal University, School of Physics and Electronics, Center of Light Manipulation and Application, Jinan, China
We propose and experimentally demonstrate a noniterative diffractive imaging method for reconstructing the complex-valued transmission function of an object illuminated by spatially partially coherent light from the far-field diffraction pattern. Our method is based on a pinhole array mask, which is specially designed such that the correlation function in the mask plane can be obtained directly by inverse Fourier transforming the diffraction pattern. Compared to the traditional iterative diffractive imaging methods using spatially partially coherent illumination, our method is noniterative and robust to the degradation of the spatial coherence of the illumination. In addition to diffractive imaging, the proposed method can also be applied to spatial coherence property characterization, e.g., free-space optical communication and optical coherence singularity measurement.
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