A general phase retrieval algorithm based on ptychographicaliterative engine for coherent diffractive imaging

doi:10.1088/1674-1056/22/1/014204

Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (1): 14204-014204.doi: 10.1088/1674-1056/22/1/014204

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

A general phase retrieval algorithm based on ptychographicaliterative engine for coherent diffractive imaging

傅健, 李鹏

Research Center of Digital Radiation Imaging and Biomedical Imaging, Beijing University of Aeronautics and Astronautics, Beiijng 100191, China

收稿日期:2012-04-26 修回日期:2012-07-19 出版日期:2012-12-01 发布日期:2012-12-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11179009 and 50875013), the Beijing Municipal Natural Science Foundation, China (Grant No. 4102036), and the Beijing NOVA Program, China (Grant No. 2009A09).

A general phase retrieval algorithm based on ptychographicaliterative engine for coherent diffractive imaging

Fu Jian (傅健), Li Peng (李鹏)

Research Center of Digital Radiation Imaging and Biomedical Imaging, Beijing University of Aeronautics and Astronautics, Beiijng 100191, China

Received:2012-04-26 Revised:2012-07-19 Online:2012-12-01 Published:2012-12-01
Contact: Fu Jian E-mail:fujian706@buaa.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11179009 and 50875013), the Beijing Municipal Natural Science Foundation, China (Grant No. 4102036), and the Beijing NOVA Program, China (Grant No. 2009A09).

摘要/Abstract

摘要： Coherent diffractive imaging (CDI) is a lensless imaging technique and can achieve a resolution beyond the Rayleigh or Abbe limit. The ptychographical iterative engine (PIE) is a CDI phase retrieval algorithm that uses multiple diffraction patterns obtained through the scan of a localized illumination on the specimen, which has been demonstrated successfully at optical and X-ray wavelengths. In this paper, a general PIE algorithm (gPIE) is presented and demonstrated with an He-Ne laser light diffraction dataset. This algorithm not only permits the removal of the accurate model of the illumination function in PIE, but also provides improved convergence speed and retrieval quality.

关键词: phase retrieval algorithm, coherent diffractive imaging, ptychography

Abstract: Coherent diffractive imaging (CDI) is a lensless imaging technique and can achieve a resolution beyond the Rayleigh or Abbe limit. The ptychographical iterative engine (PIE) is a CDI phase retrieval algorithm that uses multiple diffraction patterns obtained through the scan of a localized illumination on the specimen, which has been demonstrated successfully at optical and X-ray wavelengths. In this paper, a general PIE algorithm (gPIE) is presented and demonstrated with an He-Ne laser light diffraction dataset. This algorithm not only permits the removal of the accurate model of the illumination function in PIE, but also provides improved convergence speed and retrieval quality.

Key words: phase retrieval algorithm, coherent diffractive imaging, ptychography

中图分类号: (Phase retrieval)

42.30.Rx

42.25.Fx (Diffraction and scattering)

傅健, 李鹏. A general phase retrieval algorithm based on ptychographicaliterative engine for coherent diffractive imaging[J]. Chin. Phys. B, 2013, 22(1): 14204-014204.

Fu Jian (傅健), Li Peng (李鹏). A general phase retrieval algorithm based on ptychographicaliterative engine for coherent diffractive imaging[J]. Chin. Phys. B, 2013, 22(1): 14204-014204.

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A general phase retrieval algorithm based on ptychographicaliterative engine for coherent diffractive imaging

A general phase retrieval algorithm based on ptychographicaliterative engine for coherent diffractive imaging

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