Knowledge Management System Of Shanghai Institute of Applied Physics, CAS
| Effects of missing low-frequency information on ptychographic and plane-wave coherent diffraction imaging | |
| Liu, Haigang; Xu, Zijian; Zhang, Xiangzhi; Wu, Yanqing（吴衍青）; Guo, Zhi（郭智）; Tai, Renzhong（邰仁忠） | |
| 2013 | |
| Source Publication | APPLIED OPTICS
 |
| ISSN | 1559-128X |
| Volume | 52Issue:11Pages:CONCATENATE(Sheet1!I102,-Sheet1!J102) |
| Abstract | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000317473000025 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/13731 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Recommended Citation 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). |
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| Effects of missing l（1460KB） | 开放获取 | CC BY-NC-SA | View Download | |||
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