Abstract

By deducing a formula to compute a sample from recorded diffraction intensity directly and analytically, the relationship among the highest reachable resolution of the ptychographic iterative engine (PIE), its illumination angle, and its collection angle was discussed analytically. Curved illumination was then proposed to realize the resolution enhancement for PIE, and a corresponding computing algorithm was proposed to avoid an undersampling effect without increasing the size of the computing matrix, thus realizing speedy high-resolution PIE imaging with a simple experimental setup. While theoretical analysis was carried out, the feasibility of this proposed method was verified both numerically and experimentally.

© 2022 Optica Publishing Group

Single-shot ptychography with highly tilted illuminations

Chengcheng Chang, Xingchen Pan, Hua Tao, Cheng Liu, Suhas P Veetil, and Jianqiang Zhu
Opt. Express 28(19) 28441-28451 (2020)

Resolution-enhanced ptychography framework with an equivalent upsampling and precise position

Wenjin Lv, Junhao Zhang, Hao Chen, Dongyu Yang, Tianhao Ruan, Yupeng Zhu, Ye Tao, and Yishi Shi
Appl. Opt. 61(10) 2903-2909 (2022)

3D single-shot ptychography with highly tilted illuminations

Chengcheng Chang, Xingchen Pan, Hua Tao, Cheng Liu, Suhas P. Veetil, and Jianqiang Zhu
Opt. Express 29(19) 30878-30891 (2021)

Broadband ptychography using curved wavefront illumination

Daniel S. Penagos Molina, Lars Loetgering, Wilhelm Eschen, Jens Limpert, and Jan Rothhardt
Opt. Express 31(16) 26958-26968 (2023)

Mathematical uniqueness of multimode ptychographic imaging

Liqing Wu, Yingming Xu, Hua Tao, Chengcheng Chang, Xiaoliang He, Cheng Liu, and Jianqiang Zhu
Opt. Express 31(21) 35143-35155 (2023)