Design and implementation of compensated phase for digital holography

Fang Feng; Ai-ling Tian; Bing-cai Liu; Hongjun Wang; Rui Niu; Xiaotong Qian

doi:10.1117/12.2587605

12 March 2021 Design and implementation of compensated phase for digital holography

Fang Feng, Ai-ling Tian, Bing-cai Liu, Hongjun Wang, Rui Niu, Xiaotong Qian

Proceedings Volume 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications; 117638K (2021) https://doi.org/10.1117/12.2587605
Event: Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, 2020, Kunming, China

Abstract

As a new coherent imaging technology, digital holographic imaging technology has the characteristics of non-invasive, non-contact and fast response, and can quickly recover the three-dimensional shape of the object through a single frame image. However, there are some problems in the measurement of phase objects with abrupt information, such as discontinuous phase information and low precision of phase reconstruction. To solve this problem, the design and implementation of compensation phase are carried out. Firstly, according to the characteristic information of the measured phase object, the compensated phase encoding diagram is designed based on the phase modulation characteristics of the liquid crystal spatial light modulator; Then, the interference fringes with coded phase compensation are collected by the Mach-Zehnder interferometer system; Finally, the two-step phase-shifting algorithm is used to recover the compensated phase, and compared with the design value.

Citation Download Citation

Fang Feng, Ai-ling Tian, Bing-cai Liu, Hongjun Wang, Rui Niu, and Xiaotong Qian "Design and implementation of compensated phase for digital holography", Proc. SPIE 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications, 117638K (12 March 2021); https://doi.org/10.1117/12.2587605

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