Phase retrieval from a single near-field diffraction pattern with a large Fresnel number.
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.
Li
Enrong
E
Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Beijing, China.
Liu
Yijin
Y
Liu
Xiaosong
X
Zhang
Kai
K
Wang
Zhili
Z
Hong
Youli
Y
Yuan
Qingxi
Q
Huang
Wanxia
W
Marcelli
Augusto
A
Zhu
Peiping
P
Wu
Ziyu
Z
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