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  • AIP Publishing  (3)
  • Liu, Cheng  (3)
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  • AIP Publishing  (3)
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  • 1
    Online Resource
    Online Resource
    Analysis of influence of object–detector distance error on the reconstructed object and probe in ptychographic imaging
    AIP Publishing ; 2022
    In:  AIP Advances Vol. 12, No. 6 ( 2022-06-01)
    Details
    In: AIP Advances, AIP Publishing, Vol. 12, No. 6 ( 2022-06-01)
    Abstract: Ptychography is a lensless imaging technique that is capable of reconstructing an object and illumination simultaneously by scanning the object at several positions with respect to a localized illumination beam. It has emerged as a powerful tool with applications ranging from high resolution imaging to optical metrology. A precise image reconstruction in ptychography is of utmost importance in several applications. An error in the measurement of the object–detector distance was found to affect the reliability of the reconstructed probe and the object. Several axial distance correction algorithms have been proposed to address the issue. However, the additional axial distance correction increases the complexity of the reconstruction algorithm. In this study, a detailed theoretical analysis of the relationship between the reconstructed images and the object–detector distance error is presented. It shows that high resolution object and probe images can still be reconstructed without an axial distance correction algorithm. The theoretical analysis is quantitatively studied by numerical simulations and experimental results.
    Type of Medium: Online Resource
    ISSN: 2158-3226
    URL: Article
    DOI: 10.1063/5.0089305
    Language: English
    Publisher: AIP Publishing
    Publication Date: 2022
    detail.hit.zdb_id: 2583909-3
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Generalized deterministic linear model for coherent diffractive imaging
    AIP Publishing ; 2022
    In:  AIP Advances Vol. 12, No. 6 ( 2022-06-01)
    Details
    In: AIP Advances, AIP Publishing, Vol. 12, No. 6 ( 2022-06-01)
    Abstract: A linear model for coherent diffractive imaging (CDI) is proposed herein. In this model, CDI is expressed as a system of linear equations in the frequency domain of an object and illumination. The linear system can be directly determined to provide a unique solution for complex samples. The method is analytical and straightforward and does not require any approximation. The simulation results demonstrate that the proposed method is valid for all CDI-related imaging methods, such as traditional CDI, ptychography, coherent modulation imaging, and multiple-plane phase retrieval. The relationship between the method and the convergence of iterative phase retrieval is discussed. This mathematical model provides a direct method for analyzing the underlying physics of CDI and can be used to predict the accuracy and error in CDI applications, such as measurement and metrology.
    Type of Medium: Online Resource
    ISSN: 2158-3226
    URL: Article
    DOI: 10.1063/5.0078206
    Language: English
    Publisher: AIP Publishing
    Publication Date: 2022
    detail.hit.zdb_id: 2583909-3
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Real time quantitative phase microscopy based on single-shot transport of intensity equation (ssTIE) method
    AIP Publishing ; 2016
    In:  Applied Physics Letters Vol. 109, No. 7 ( 2016-08-15)
    Details
    In: Applied Physics Letters, AIP Publishing, Vol. 109, No. 7 ( 2016-08-15)
    Abstract: Microscopy based on transport of intensity equation provides quantitative phase distributions which opens another perspective for cellular observations. However, it requires multi-focal image capturing while mechanical and electrical scanning limits its real time capacity in sample detections. Here, in order to break through this restriction, real time quantitative phase microscopy based on single-shot transport of the intensity equation method is proposed. A programmed phase mask is designed to realize simultaneous multi-focal image recording without any scanning; thus, phase distributions can be quantitatively retrieved in real time. It is believed the proposed method can be potentially applied in various biological and medical applications, especially for live cell imaging.
    Type of Medium: Online Resource
    ISSN: 0003-6951 , 1077-3118
    URL: Article
    DOI: 10.1063/1.4961383
    RVK:
    UA 1000
    Language: English
    Publisher: AIP Publishing
    Publication Date: 2016
    detail.hit.zdb_id: 211245-0
    detail.hit.zdb_id: 1469436-0
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