title: Phase retrieval from a single near-field diffraction pattern with a large Fresnel number.
abstract: A new method of phase retrieval from a single near-field diffraction image with a large Fresnel number is presented and discussed. This method requires only the oversampled diffraction pattern without any other information such as the object envelope. Moreover, we show that the combination with a fast computational method is possible when the linear oversampling ratio is an integer. Numerical simulations are also presented, showing that the method works well with noisy data.
authors.affiliation: Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Beijing, China.
authors.forename: Enrong
authors.initials: E
authors.lastname: Li
authors.forename: Yijin
authors.initials: Y
authors.lastname: Liu
authors.forename: Xiaosong
authors.initials: X
authors.lastname: Liu
authors.forename: Kai
authors.initials: K
authors.lastname: Zhang
authors.forename: Zhili
authors.initials: Z
authors.lastname: Wang
authors.forename: Youli
authors.initials: Y
authors.lastname: Hong
authors.forename: Qingxi
authors.initials: Q
authors.lastname: Yuan
authors.forename: Wanxia
authors.initials: W
authors.lastname: Huang
authors.forename: Augusto
authors.initials: A
authors.lastname: Marcelli
authors.forename: Peiping
authors.initials: P
authors.lastname: Zhu
authors.forename: Ziyu
authors.initials: Z
authors.lastname: Wu
mesh_terms: D000465:Algorithms; D005583:Fourier Analysis; D006801:Humans; D007091:Image Processing, Computer-Assisted; D015233:Models, Statistical; D008962:Models, Theoretical; D055620:Optical Phenomena; D055095:Optics and Photonics; D012542:Scattering, Radiation