CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
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 PublicationAPPLIED OPTICS
ISSN1559-128X
Volume52Issue:11Pages:CONCATENATE(Sheet1!I102,-Sheet1!J102)
AbstractIn 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 BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000317473000025
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13731
Collection中科院上海应用物理研究所2011-2019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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