Design of the experimental system of digital off-axis holography and analysis of zero-order image

Qieni Lü; Baozhen Ge; Junfeng Jiang; Yimo Zhang

doi:10.1117/12.575302

7 February 2005 Design of the experimental system of digital off-axis holography and analysis of zero-order image

Qieni Lü, Baozhen Ge, Junfeng Jiang, Yimo Zhang

Proceedings Volume 5636, Holography, Diffractive Optics, and Applications II; (2005) https://doi.org/10.1117/12.575302
Event: Photonics Asia, 2004, Beijing, China

Abstract

The simple hologram recording system of digital off-axis holography is designed. Holographic diffraction grating of low spatial frequency is introduced to digital holography, acting as a beam splitter, illuminated by the monochrome plane parallel light wave, and the three different plane parallel light waves, namely, the zero-order and the ±1order diffraction waves, are generated. An off-axis holography system is configurated between the +1/-1order diffraction waves and the zero-order wave. The theoretical analysis has been done in detail and the zero-order diffraction in the reconstructed image of digital off-axis holography is also analyzed theoretically. The experimental results are given. The feasibility of the experimental system presented in this paper was confirmed, simple in optical structure and easy in operation. In addition, the zero-order image can be eliminated by numerically processing the holograms of object with different recording parameters obtained by adjusting the reflecting mirror in the recording optical system to vary the incidence beam orientation in CCD to introduce a phase shift.

Citation Download Citation

Qieni Lü, Baozhen Ge, Junfeng Jiang, and Yimo Zhang "Design of the experimental system of digital off-axis holography and analysis of zero-order image", Proc. SPIE 5636, Holography, Diffractive Optics, and Applications II, (7 February 2005); https://doi.org/10.1117/12.575302

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