OTF and PSF of circular-grating optical scanning holography

Wanguo Liang; Dazun Zhao; Jinghui Xie; Yeling Zhao

doi:10.1117/12.318078

11 August 1998 OTF and PSF of circular-grating optical scanning holography

Wanguo Liang; Dazun Zhao; Jinghui Xie; Yeling Zhao

Author Affiliations +

Proceedings Volume 3553, Detectors, Focal Plane Arrays, and Imaging Devices II; (1998) https://doi.org/10.1117/12.318078
Event: Photonics China '98, 1998, Beijing, China

Abstract

The recording of the hologram in the optical scanning holography (OSH) proposed by T.C. Poon is a process in which a Fresnel zone plate (FZP) is used to scan the object, but since the spacing between two adjacent rings of FZP at the center portion is greater than that at the edge portion, the resolution capability of the system, which can resolve the edge portion of the FZP, is not fully exploited. The fact that a circular grating (CG) has uniform spacings everywhere, enlightens us to suggest the CG optical scanning holography. It has been found that the optical transfer function of the system equals the Fourier transform of the intensity transmissivity of the projecting circular grating, and the point spread function of the system equals to a (delta) function. Also given in this paper are the principles of the CG optical scanning holography and the computer simulations.

Citation Download Citation

Wanguo Liang, Wanguo Liang, Dazun Zhao, Dazun Zhao, Jinghui Xie, Jinghui Xie, Yeling Zhao, Yeling Zhao, } "OTF and PSF of circular-grating optical scanning holography", Proc. SPIE 3553, Detectors, Focal Plane Arrays, and Imaging Devices II, (11 August 1998); doi: 10.1117/12.318078; https://doi.org/10.1117/12.318078

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