| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Lensless Ghost Diffraction with Partially Coherent Sources: Effects of the Source Size, Transverse Coherence, Detector Size and Defocusing Length |
| LIN Jie1,2**, CHENG Jing3
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1School of Electronics and Information Engineering, South China University of Technology, Guangzhou 510641
2School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006
3Department of Physics, South China University of Technology, Guangzhou 510641
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| Cite this article: |
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LIN Jie, CHENG Jing 2011 Chin. Phys. Lett. 28 094203 |
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Abstract Lensless ghost diffraction with partially coherent sources is investigated theoretically and numerically. Based on the classical optical coherent theory and the Gauss–Shell model of the partially coherent sources, we derive an analytical imaging formula of lensless ghost diffraction (LGD). Using this formula, we can see the effects of the transverse size and coherence of the sources, the detector size and defocusing length on the quality of LGD. Numerical results are presented to show that for different detector sizes and defocusing lengths, high quality LGD can be realized by using sources with appropriate transverse sizes and coherent widths. These findings can be used to choose the optimal parameters in the design of a realistic LGD system.
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42.30.Kq
42.30.Wb
42.25.Kb
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Received: 09 April 2011
Published: 30 August 2011
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