Effects of missing low-frequency information on ptychographic and plane-wave coherent diffraction imaging
文献类型：期刊论文
| 作者 | Liu, Haigang ; Xu, Zijian ; Zhang, Xiangzhi ; Wu, Yanqing（吴衍青） ; Guo, Zhi（郭智） ; Tai, Renzhong（邰仁忠） |
| 刊名 | APPLIED OPTICS
 |
| 出版日期 | 2013 |
| 卷号 | 52期号:11页码:CONCATENATE(Sheet1!I102,-Sheet1!J102) |
| ISSN号 | 1559-128X |
| 英文摘要 | In coherent diffractive imaging (CDI) experiments, a beamstop (BS) is commonly used to extend the exposure time of the charge-coupled detector and obtain high-angle diffraction signals. However, the negative effect of a large BS is also evident, causing low-frequency signals to be missed and making CDI reconstruction unstable or causing it to fail. We performed a systematic simulation investigation of the effects of BSs on the quality of reconstructed images from both plane-wave and ptychographic CDI (PCDI). For the same imaging quality, we found that ptychography can tolerate BSs that are at least 20 times larger than those for plane-wave CDI. For PCDI, a larger overlap ratio and a smaller illumination spot can significantly increase the imaging robustness to the negative influence of BSs. Our results provide guidelines for the usage of BSs in CDI, especially in PCDI experiments, which can help to further improve the spatial resolution of PCDI. (C) 2013 Optical Society of America |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000317473000025 |
| 公开日期 | 2014-06-13 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/13731]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Liu, Haigang,Xu, Zijian,Zhang, Xiangzhi,et al. Effects of missing low-frequency information on ptychographic and plane-wave coherent diffraction imaging[J]. APPLIED OPTICS,2013,52(11):CONCATENATE(Sheet1!I102,-Sheet1!J102). |
| APA | Liu, Haigang,Xu, Zijian,Zhang, Xiangzhi,Wu, Yanqing,Guo, Zhi,&Tai, Renzhong.(2013).Effects of missing low-frequency information on ptychographic and plane-wave coherent diffraction imaging.APPLIED OPTICS,52(11),CONCATENATE(Sheet1!I102,-Sheet1!J102). |
| MLA | Liu, Haigang,et al."Effects of missing low-frequency information on ptychographic and plane-wave coherent diffraction imaging".APPLIED OPTICS 52.11(2013):CONCATENATE(Sheet1!I102,-Sheet1!J102). |
入库方式： OAI收割
来源：上海应用物理研究所
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