Abstract

A modified extended-ptychographical-iterative-engine (ePIE) algorithm is proposed to overcome the disadvantages of ePIE technique and reduce the influence of stage hysteresis or backlash error. The exit wave of a rotatable "screen" illuminated by plane wave is used as the illumination on the specimen, and the complex transmission functions of the rotatable object and specimen can be simultaneously reconstructed. Compared with the standard x-y scanning PIE algorithm, the proposed algorithm can completely avoid the influence of stage hysteresis (or backlash error). The proposed algorithm also has higher convergence speed and better accuracy than the standard PIE algorithm.

© 2014 Chinese Optics Letters

Ptycholographic iterative engine with self-positioned scanning illumination

Xinchen Pan, Cheng Liu, Qiang Lin, and Jianqiang Zhu
Opt. Express 21(5) 6162-6168 (2013)

Resolution enhancement with highly curved illumination in ptychography

Xiaoli Ji, Xiaoliang He, Zhilong Jiang, Yan Kong, Shouyu Wang, and Cheng Liu
Appl. Opt. 61(34) 10150-10158 (2022)

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)

High contrast imaging for weakly diffracting specimens with ptychographical iterative engine

Xingchen Pan, Suhas P. Veetil, Cheng Liu, and Jianqiang Zhu
Opt. Lett. 37(16) 3348-3350 (2012)

Multiple-image double-encryption via 2D rotations of a random phase mask with spatially incoherent illumination

Yaoyao Shi, Youwen Liu, Wei Sheng, Dabo Zhu, Jiming Wang, and Tong Wu
Opt. Express 27(18) 26050-26059 (2019)