Multi-frame digital hologram based on azimuth encoding method

Shuangbin Wang; Jingzhen Li; Xiaowei Lu

doi:10.1117/12.790597

3 March 2008 Multi-frame digital hologram based on azimuth encoding method

Shuangbin Wang, Jingzhen Li, Xiaowei Lu

Proceedings Volume 6621, International Symposium on Photoelectronic Detection and Imaging 2007: Photoelectronic Imaging and Detection; 66210E (2008) https://doi.org/10.1117/12.790597
Event: International Symposium on Photoelectronic Detection and Imaging: Technology and Applications 2007, 2007, Beijing, China

Abstract

Holography based extreme high-speed photography (EHSP) is a novel technique to study extreme high speed photography with holography. In order to get multi-frame holograms in high speed holography, studying the framing principle is very important. Coding reference beam is essential to get multi-frame digital hologram. In this paper, multi-frame digital holography based on Fourier transformed setup is presented. We study the azimuth encoding method for the recording theoretically. Point light sources in x-y plane arrange in a narrow circle are selected as reference wave and the object wave is located in origin of x-y plane. Every point light source stands for a certain azimuth angular. For the radius of the circle is much smaller than the recording distance, it can be approximately regarded as quasi-on-axis digital holography. Multiple digital holograms are stored in a single CCD frame, and reconstructed simultaneously. For a certain magnitude of object, the minimize framing angular, namely, the least angular of two neighboring points, is carefully studied. And stationary experiment results are also presented. Theoretic and experimental result show that multi-frame digital holograms with azimuth encoding method can get multiple frames that the EHSP requires. This indicates that, this encoding method can be used in high speed photography to get multi-frame images.

Citation Download Citation

Shuangbin Wang, Jingzhen Li, and Xiaowei Lu "Multi-frame digital hologram based on azimuth encoding method", Proc. SPIE 6621, International Symposium on Photoelectronic Detection and Imaging 2007: Photoelectronic Imaging and Detection, 66210E (3 March 2008); https://doi.org/10.1117/12.790597

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