| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
Prev
Next
|
|
|
Influence of the illumination coherency and illumination aperture on the ptychographic iterative microscopy |
| Liu Cheng (刘诚)a b, Zhu Jian-Qiang (朱健强)a, John Rodenburgb |
a Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
b Department of Electronic and Electric Engineering, University of Sheffield, UK |
|
|
|
|
Abstract While ptychography is an algorithm based on coherent illumination, satisfactory reconstructions can still be generated in most experiments, even though the radiation sources that are used are not ideally coherent. The underlying physics of this phenomenon is that the diffraction patterns of partially coherent illumination can be treated as those of purely coherent illumination by altering the intensities of the diffracted beams relative to their real values. On the other hand, due to the inconsistency in the altering interference among all the diffraction beams, noise/distortion is always involved in the reconstructed images. Furthermore, for a weak object, the noise/distortion in the reconstruction can be mostly reduced by using a highly curved beam for illumination in the data recording and forcing the dark field diffraction to be zero in the reconstruction.
|
Received: 07 July 2014
Revised: 16 September 2014
Accepted manuscript online:
|
|
PACS:
|
42.30.Rx
|
(Phase retrieval)
|
| |
42.25.Kb
|
(Coherence)
|
| |
61.72.Ff
|
(Direct observation of dislocations and other defects (etch pits, decoration, electron microscopy, x-ray topography, etc.))
|
|
Corresponding Authors:
Liu Cheng
E-mail: chengliu@siom.ac.cn
|
Cite this article:
Liu Cheng (刘诚), Zhu Jian-Qiang (朱健强), John Rodenburg Influence of the illumination coherency and illumination aperture on the ptychographic iterative microscopy 2015 Chin. Phys. B 24 024201
|
| [1] |
Miao J, Charalambous C, Kirz J and Sayre D 1999 Nature 400 342
|
| [2] |
Weierstall U, Chen Q, Spence J, Howells M, Isaacson M and Panepucci R 2001 Ultramicroscopy 90 171
|
| [3] |
Fienup J R 1982 Appl. Opt. 21 2758
|
| [4] |
Spence J, Weierstall U and Howells M 2002 Philos. Trans. 360 875
|
| [5] |
He H, Marchesini S, Howells M, Weierstall U, Hembree G and Spence J C H 2003 Acta Crystalloge. A 59 143
|
| [6] |
Shapiro D, Thibault P, Beetz T, Elser V, Howells M, Jacobsen C, Kirz J, Lima E, Miao H, Neiman A M and Sayre D 2005 Proc. Natl. Acad. Sci. USA 102 15343
|
| [7] |
Pfeifer M A, Williams G J, Vartanyants I A, Harder R and Robinson I K 2006 Nature 442 63
|
| [8] |
Chapman H N, Barty A, Marchesini S, Noy A, Hau-Riege S P, Cui C, Howells M R, Rosen R, He H, Spence J C H, Weierstall U, Beetz T, Jacobsen C and Shapiro D 2006 J. Opt. Soc. Am. A 23 1179
|
| [9] |
Rodenburg J M 2008 Advances in Imaging and Electron Physics 150 87
|
| [10] |
Rodenburg J M, Hurst A and Cullis A 2007 Ultramicroscopy 107 227
|
| [11] |
Rodenburg J M, Hurst A C, Cullis A G, Dobson B R, Pfeiffer F, Bunk O, David C, Jefimovs K and Johnson I 2007 Phys. Rev. Lett. 98 034801
|
| [12] |
Spence J C H, Weierstall U and Howells M 2004 Ultramicroscopy 101 149
|
| [13] |
Flewett S, Quiney H M, Tran C Q and Nugent K A 2009 Opt. Lett. 34 2198
|
| [14] |
Willams G J, Quiney H M, Peele A G and Nugent K A 2007 Phys. Rev. B 75 104102
|
| [15] |
Zhang K, Li D, Hong Y L, Zhu P P, Yuan Q X, Huang W X, Gao K, Zhou H Z and Wu Z Y 2013 Chin. Phys. B 22 076801
|
| [16] |
Wang X H, Lin L and Zhang Y 2007 Chin. Phys. 16 3285
|
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|
