Improving reconstruction with optical diffraction field in Fresnel digital holography

Dayong Wang; Jie Zhao; Guangjun Wang; Yuhong Wan; Zhuqing Jiang; Shiquan Tao

doi:10.1117/12.755890

4 January 2008 Improving reconstruction with optical diffraction field in Fresnel digital holography

Dayong Wang, Jie Zhao, Guangjun Wang, Yuhong Wan, Zhuqing Jiang, Shiquan Tao

Proceedings Volume 6832, Holography and Diffractive Optics III; 683207 (2008) https://doi.org/10.1117/12.755890
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

We present an analysis of the reconstruction through any intermediate plane by using the cascaded Fresnel diffraction integrals. The realization of the integral with the single fast-Fourier-transform (FFT) imposes inherently the constraints on the pixel resolution and the field of view of the computation window in the intermediate plane. On the other hand, according to the optical diffraction field of the band-limited object, the size of the diffraction field including most energy exhibits a change with the intermediate plane in a different way. Since the field of view of the computation window is usually smaller than the corresponding optical diffraction field, then the simply cascaded FFT-Fresnel diffraction integral algorithms will lose the resolution and degrade the image quality. It is proposed to improve the reconstruction by compensating the field to be close to the optical diffraction field and using the new field as the computation window in the intermediate plane. The numerical simulation and the experimental data-based calculation are performed and demonstrate our proposal.

Citation Download Citation

Dayong Wang, Jie Zhao, Guangjun Wang, Yuhong Wan, Zhuqing Jiang, and Shiquan Tao "Improving reconstruction with optical diffraction field in Fresnel digital holography", Proc. SPIE 6832, Holography and Diffractive Optics III, 683207 (4 January 2008); https://doi.org/10.1117/12.755890

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KEYWORDS

Diffraction

Reconstruction algorithms

Pixel resolution

Holograms

Digital holography

Wave propagation

Geometrical optics

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