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.
© 2008 Optical Society of America
Original Manuscript: April 24, 2008
Revised Manuscript: July 27, 2008
Manuscript Accepted: August 25, 2008
Published: October 8, 2008
Enrong Li, Yijin Liu, Xiaosong Liu, Kai Zhang, Zhili Wang, Youli Hong, Qingxi Yuan, Wanxia Huang, Augusto Marcelli, Peiping Zhu, and Ziyu Wu, "Phase retrieval from a single near-field diffraction pattern with a large Fresnel number," J. Opt. Soc. Am. A 25, 2651-2658 (2008)