Phase-shifting digital holography with vortex lens

Xiuping Zhang; Junyong Zhang; Dean Liu; Jianqiang Zhu

doi:10.1117/12.2505170

15 November 2018 Phase-shifting digital holography with vortex lens

Xiuping Zhang, Junyong Zhang, Dean Liu, Jianqiang Zhu

Proceedings Volume 10964, Tenth International Conference on Information Optics and Photonics; 109641A (2018) https://doi.org/10.1117/12.2505170
Event: Tenth International Conference on Information Optics and Photonics (CIOP 2018), 2018, Beijing, China

Abstract

Phase-shifting digital holography (PSDH) is considered as a promising imaging technique with wide application in optical storage, topography measurement and defect detection. The amplitude-only vortex lens is a kind of diffractive optical elements (DOEs) which can be used for focusing and imaging in a wide spectral region, such as coherent X-rays and terahertz wave. Here four-step PSDH with an amplitude-only vortex lens is proposed. Four frames of hologram can be recorded by rotating the vortex lens installed in the reference beam path. Both a 1951 U.S. air force resolution test target and a vortex focal spot are measured by four-step PSDH with vortex lens. The experimental results are in good agreement with the theoretical analysis and verify the validity of our proposed PSDH with vortex lens.

Citation Download Citation

Xiuping Zhang, Junyong Zhang, Dean Liu, and Jianqiang Zhu "Phase-shifting digital holography with vortex lens", Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109641A (15 November 2018); https://doi.org/10.1117/12.2505170

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