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Proceedings Paper

Imaging characteristics of a volume holographic lens
Author(s): Jing Yang; Zhu-qing Jiang; Zhi-qiang Xu; Shao-jie Liu; Ya-jun Sun; Shi-quan Tao
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Paper Abstract

A volume holographic grating lens can reconstruct the three-dimensional information by conducting multiple optical slicing of an object based on Bragg selectivity of the volume holographic grating. In this paper, we employ the point-spread function of volume holographic imaging system to theoretically analyze its imaging resolution. In the experiments, the volume holographic gratings are made with a spherical reference (SR) and a planar reference (PR), respectively, and used as volume holographic imaging lens in our imaging system. The longitudinal and lateral defocusing characteristics of volume holographic lens with SR and with PR are investigated experimentally by displacing the interested objects from original reference location, respectively. The effects of the parameters of the volume holographic lens on the longitudinal and lateral resolution are also discussed. The experimental results show that increasing the size of the volume holographic lens can improve the depth resolution, and in particular, it has greater influence on SR VHI. The lateral selectivity of SR VHI is more sensitive than that of PR VHI, and the Bragg degenerate diffraction of PR VHI on the y axis is obviously observed.

Paper Details

Date Published: 31 August 2009
PDF: 8 pages
Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73823Y (31 August 2009); doi: 10.1117/12.835340
Show Author Affiliations
Jing Yang, Beijing Univ. of Technology (China)
Zhu-qing Jiang, Beijing Univ. of Technology (China)
Zhi-qiang Xu, Beijing Univ. of Technology (China)
Shao-jie Liu, Beijing Univ. of Technology (China)
Ya-jun Sun, Beijing Univ. of Technology (China)
Shi-quan Tao, Beijing Univ. of Technology (China)

Published in SPIE Proceedings Vol. 7382:
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging
Farzin Amzajerdian; Chun-qing Gao; Tian-yu Xie, Editor(s)

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