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Some key parameters of illuminating beam and the influence on imaging quality are investigated via ptychography in visible light band. The influences of overlap ratio, size and shape of illuminating beam on imaging quality and their relationship are studied using ptychographical iterative engine algorithm. The simulation results show that the overlap ratio of illuminating beam is a main factor influencing imaging quality. Shape of illuminating beam mainly influences the convergence of ptychography. And the size of illuminating beam less influences directly the imaging quality and convergence. Therefore, the simulation results play an important theoretic guiding role in optimizing the beam parameters in visible light, the X-ray and electronic band and other bands.
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Keywords:
- coherent-diffraction /
- ptychography /
- phase retrieval
[1] Hoppe W 1969 Acta Cryst. A 25 495
[2] Hoppe W 1969 Acta Cryst. A 25 508
[3] Rodenburg J M, Faulkner H M L 2004 Appl. Phys. Lett. 85 4795
[4] Faulkner H M L, Rodenburg J M 2004 Phys. Rev. Lett. 93 023903
[5] Rodenburg J M, Hurst A C, Cullis A G, Dobson B R, Pfeiffer F, Bunk O, David C, Jefimovs K, Johnson I 2007 Phys. Rev. Lett. 98 034801
[6] Rodenburg J M, Hurst A C, Cullis A G 2007 Ultramicroscopy 107 227
[7] Thibault P, Dierolf M, Menzel A, Bunk O, David C, Pfeiffer F 2008 Science 321 379
[8] Dierolf M, Menzel A, Thibault P, Schneider P, Kewish M C, Wepf R, Bunk O, Pfeiffer F 2010 Nature 467 436
[9] Humphry M J, Kraus B, Hurst A C, Maiden A M, Rodenburg J M 2012 Nature Commun. 3 730
[10] Pan X C, Lin Q, Liu C, Zhu J Q 2012 Chin. Phys. Lett. 29 084216
[11] Maiden A M, Rodenburg J M, Humphry M J 2010 Opt. Lett. 35 2585
[12] Guizar-Sicairos M, Fienup J R 2008 Opt. Express 16 7264
[13] Bunk O, Dierolf M, Kynde S, Johnson I, Marti O, Pfeiffer F 2008 Ultramicroscopy 108 481
[14] Shi Y S, Situ G H, Zhang J J 2008 Opt. Lett. 33 542
[15] Li J C, Xiong B H 2009 Theory and Computation on Information Optics (Beijing: Science Press) p65 (in Chinese) [李俊昌, 熊秉衡 2009 信息光学理论与计算 (北京: 科学出版社) 第65页]
[16] Wang L Z, Cheng T M, Qi S 2011 J. Jimusi Univ. (Natural Science Edition) 29 135 (in Chinese) [王丽芝, 成泰民, 祁烁 2011 佳木斯大学学报 (自然科学版) 29 135]
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[1] Hoppe W 1969 Acta Cryst. A 25 495
[2] Hoppe W 1969 Acta Cryst. A 25 508
[3] Rodenburg J M, Faulkner H M L 2004 Appl. Phys. Lett. 85 4795
[4] Faulkner H M L, Rodenburg J M 2004 Phys. Rev. Lett. 93 023903
[5] Rodenburg J M, Hurst A C, Cullis A G, Dobson B R, Pfeiffer F, Bunk O, David C, Jefimovs K, Johnson I 2007 Phys. Rev. Lett. 98 034801
[6] Rodenburg J M, Hurst A C, Cullis A G 2007 Ultramicroscopy 107 227
[7] Thibault P, Dierolf M, Menzel A, Bunk O, David C, Pfeiffer F 2008 Science 321 379
[8] Dierolf M, Menzel A, Thibault P, Schneider P, Kewish M C, Wepf R, Bunk O, Pfeiffer F 2010 Nature 467 436
[9] Humphry M J, Kraus B, Hurst A C, Maiden A M, Rodenburg J M 2012 Nature Commun. 3 730
[10] Pan X C, Lin Q, Liu C, Zhu J Q 2012 Chin. Phys. Lett. 29 084216
[11] Maiden A M, Rodenburg J M, Humphry M J 2010 Opt. Lett. 35 2585
[12] Guizar-Sicairos M, Fienup J R 2008 Opt. Express 16 7264
[13] Bunk O, Dierolf M, Kynde S, Johnson I, Marti O, Pfeiffer F 2008 Ultramicroscopy 108 481
[14] Shi Y S, Situ G H, Zhang J J 2008 Opt. Lett. 33 542
[15] Li J C, Xiong B H 2009 Theory and Computation on Information Optics (Beijing: Science Press) p65 (in Chinese) [李俊昌, 熊秉衡 2009 信息光学理论与计算 (北京: 科学出版社) 第65页]
[16] Wang L Z, Cheng T M, Qi S 2011 J. Jimusi Univ. (Natural Science Edition) 29 135 (in Chinese) [王丽芝, 成泰民, 祁烁 2011 佳木斯大学学报 (自然科学版) 29 135]
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